634457754436 has 18 divisors (see below), whose sum is σ = 1220413574030. Its totient is φ = 288389888160.

The previous prime is 634457754419. The next prime is 634457754439.

It is a happy number.

634457754436 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 614953956100 + 19503798336 = 784190^2 + 139656^2 .

It is not an unprimeable number, because it can be changed into a prime (634457754439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655431081 + ... + 655432048.

Almost surely, 2^634457754436 is an apocalyptic number.

It is an amenable number.

634457754436 is a deficient number, since it is larger than the sum of its proper divisors (585955819594).

634457754436 is a wasteful number, since it uses less digits than its factorization.

634457754436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310863155 (or 1310863142 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 58.

The spelling of 634457754436 in words is "six hundred thirty-four billion, four hundred fifty-seven million, seven hundred fifty-four thousand, four hundred thirty-six".