47559521790 has 320 divisors, whose sum is σ = 145801244160. Its totient is φ = 11017762560.

The previous prime is 47559521671. The next prime is 47559521879. The reversal of 47559521790 is 9712595574.

It is a happy number.

47559521790 is a `hidden beast` number, since 47 + 5 + 5 + 9 + 521 + 79 + 0 = 666.

It is a super-2 number, since 2×47559521790² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 26613277 + ... + 26615063.

It is an arithmetic number, because the mean of its divisors is an integer number (455628888).

Almost surely, 2^47559521790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47559521790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72900622080).

47559521790 is an abundant number, since it is smaller than the sum of its proper divisors (98241722370).

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

47559521790 is a wasteful number, since it uses less digits than its factorization.

47559521790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 54.

The spelling of 47559521790 in words is "forty-seven billion, five hundred fifty-nine million, five hundred twenty-one thousand, seven hundred ninety".