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5487747816870 = 23251117894877523
BaseRepresentation
bin100111111011011011101…
…0000100101110110100110
3201102121211120200110002100
41033312313100211312212
51204402401420114440
615401011520552530
71104322335541134
oct117666720456646
921377746613070
105487747816870
111826382639480
1274768b782746
1330a652a52227
1414d8736a4754
1597b378bd230
hex4fdb7425da6

5487747816870 has 384 divisors, whose sum is σ = 16702471019520. Its totient is φ = 1235331440640.

The previous prime is 5487747816857. The next prime is 5487747816913. The reversal of 5487747816870 is 786187477845.

5487747816870 is a `hidden beast` number, since 5 + 4 + 8 + 77 + 478 + 1 + 6 + 87 + 0 = 666.

It is a super-2 number, since 2×54877478168702 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 729458929 + ... + 729466451.

It is an arithmetic number, because the mean of its divisors is an integer number (43496018280).

Almost surely, 25487747816870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5487747816870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8351235509760).

5487747816870 is an abundant number, since it is smaller than the sum of its proper divisors (11214723202650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5487747816870 is a wasteful number, since it uses less digits than its factorization.

5487747816870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140 (or 8137 counting only the distinct ones).

The product of its (nonzero) digits is 590069760, while the sum is 72.

The spelling of 5487747816870 in words is "five trillion, four hundred eighty-seven billion, seven hundred forty-seven million, eight hundred sixteen thousand, eight hundred seventy".