47697656832 has 528 divisors, whose sum is σ = 163497984000. Its totient is φ = 13384949760.

The previous prime is 47697656801. The next prime is 47697656843. The reversal of 47697656832 is 23865679674.

47697656832 is a `hidden beast` number, since 4 + 7 + 69 + 7 + 6 + 568 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 47697656832.

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, 249725857 + ... + 249726047.

Almost surely, 2^47697656832 is an apocalyptic number.

47697656832 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47697656832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81748992000).

47697656832 is an abundant number, since it is smaller than the sum of its proper divisors (115800327168).

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

47697656832 is a wasteful number, since it uses less digits than its factorization.

47697656832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 282 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 47697656832 in words is "forty-seven billion, six hundred ninety-seven million, six hundred fifty-six thousand, eight hundred thirty-two".