51848939736 has 192 divisors, whose sum is σ = 155139379200. Its totient is φ = 15513120000.

The previous prime is 51848939729. The next prime is 51848939783. The reversal of 51848939736 is 63793984815.

51848939736 is a `hidden beast` number, since 51 + 8 + 489 + 39 + 73 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23032611 + ... + 23034861.

It is an arithmetic number, because the mean of its divisors is an integer number (808017600).

Almost surely, 2^51848939736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51848939736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77569689600).

51848939736 is an abundant number, since it is smaller than the sum of its proper divisors (103290439464).

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

51848939736 is a wasteful number, since it uses less digits than its factorization.

51848939736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630 (or 2623 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 51848939736 in words is "fifty-one billion, eight hundred forty-eight million, nine hundred thirty-nine thousand, seven hundred thirty-six".