635427142136 has 32 divisors (see below), whose sum is σ = 1197741006000. Its totient is φ = 316030262016.

The previous prime is 635427142123. The next prime is 635427142159. The reversal of 635427142136 is 631241724536.

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, 7410275 + ... + 7495533.

Almost surely, 2^635427142136 is an apocalyptic number.

It is an amenable number.

635427142136 is a deficient number, since it is larger than the sum of its proper divisors (562313863864).

635427142136 is a wasteful number, since it uses less digits than its factorization.

635427142136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90191 (or 90187 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The spelling of 635427142136 in words is "six hundred thirty-five billion, four hundred twenty-seven million, one hundred forty-two thousand, one hundred thirty-six".