634641127362240 has 112 divisors (see below), whose sum is σ = 2079985114291200. Its totient is φ = 163778355440640.

The previous prime is 634641127362127. The next prime is 634641127362251. The reversal of 634641127362240 is 42263721146436.

It is a super-2 number, since 2×634641127362240² (a number of 30 digits) contains 22 as substring.

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, 10662623590 + ... + 10662683109.

Almost surely, 2^{634641127362240} is an apocalyptic number.

634641127362240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634641127362240 is an abundant number, since it is smaller than the sum of its proper divisors (1445343986928960).

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

634641127362240 is a wasteful number, since it uses less digits than its factorization.

634641127362240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21325306750 (or 21325306740 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 51.

The spelling of 634641127362240 in words is "six hundred thirty-four trillion, six hundred forty-one billion, one hundred twenty-seven million, three hundred sixty-two thousand, two hundred forty".