634722227436 has 48 divisors (see below), whose sum is σ = 1617320815488. Its totient is φ = 192141945600.

The previous prime is 634722227431. The next prime is 634722227449.

It is a happy number.

634722227436 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×634722227436² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (634722227431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2347885 + ... + 2604228.

It is an arithmetic number, because the mean of its divisors is an integer number (33694183656).

Almost surely, 2^634722227436 is an apocalyptic number.

634722227436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

634722227436 is an abundant number, since it is smaller than the sum of its proper divisors (982598588052).

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

634722227436 is a wasteful number, since it uses less digits than its factorization.

634722227436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953102 (or 4953100 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 48.

The spelling of 634722227436 in words is "six hundred thirty-four billion, seven hundred twenty-two million, two hundred twenty-seven thousand, four hundred thirty-six".