634474474436 has 48 divisors (see below), whose sum is σ = 1282849892352. Its totient is φ = 271363238400.

The previous prime is 634474474427. The next prime is 634474474451.

634474474436 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2860406 + ... + 3074226.

It is an arithmetic number, because the mean of its divisors is an integer number (26726039424).

Almost surely, 2^634474474436 is an apocalyptic number.

It is an amenable number.

634474474436 is an abundant number, since it is smaller than the sum of its proper divisors (648375417916).

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

634474474436 is a wasteful number, since it uses less digits than its factorization.

634474474436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217820 (or 217818 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 56.

The spelling of 634474474436 in words is "six hundred thirty-four billion, four hundred seventy-four million, four hundred seventy-four thousand, four hundred thirty-six".