634356431000 has 32 divisors (see below), whose sum is σ = 1484394050880. Its totient is φ = 253742572000.

The previous prime is 634356430973. The next prime is 634356431021. The reversal of 634356431000 is 134653436.

634356431000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×634356431000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317177216 + ... + 317179215.

It is an arithmetic number, because the mean of its divisors is an integer number (46387314090).

Almost surely, 2^634356431000 is an apocalyptic number.

It is an amenable number.

634356431000 is an abundant number, since it is smaller than the sum of its proper divisors (850037619880).

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

634356431000 is a wasteful number, since it uses less digits than its factorization.

634356431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634356452 (or 634356438 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 634356431000 in words is "six hundred thirty-four billion, three hundred fifty-six million, four hundred thirty-one thousand".