634441332064 has 24 divisors (see below), whose sum is σ = 1314796182840. Its totient is φ = 300524841216.

The previous prime is 634441332061. The next prime is 634441332127. The reversal of 634441332064 is 460233144436.

It is a super-2 number, since 2×634441332064² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634441332061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521743909 + ... + 521745124.

It is an arithmetic number, because the mean of its divisors is an integer number (54783174285).

Almost surely, 2^634441332064 is an apocalyptic number.

It is an amenable number.

634441332064 is an abundant number, since it is smaller than the sum of its proper divisors (680354850776).

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

634441332064 is a wasteful number, since it uses less digits than its factorization.

634441332064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043489062 (or 1043489054 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 634441332064 in words is "six hundred thirty-four billion, four hundred forty-one million, three hundred thirty-two thousand, sixty-four".