9477556956 has 384 divisors, whose sum is σ = 30152908800. Its totient is φ = 2549657088.

The previous prime is 9477556951. The next prime is 9477557027. The reversal of 9477556956 is 6596557749.

9477556956 is a `hidden beast` number, since 9 + 4 + 77 + 556 + 9 + 5 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 9477556893 and 9477556902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9477556951) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 106489360 + ... + 106489448.

It is an arithmetic number, because the mean of its divisors is an integer number (78523200).

Almost surely, 2^9477556956 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 9477556956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15076454400).

9477556956 is an abundant number, since it is smaller than the sum of its proper divisors (20675351844).

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

9477556956 is a wasteful number, since it uses less digits than its factorization.

9477556956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 185 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 63.

The square root of 9477556956 is about 97352.7449844122. The cubic root of 9477556956 is about 2116.2426739759.

The spelling of 9477556956 in words is "nine billion, four hundred seventy-seven million, five hundred fifty-six thousand, nine hundred fifty-six".