635272322540 has 24 divisors (see below), whose sum is σ = 1334114485872. Its totient is φ = 254100813120.

The previous prime is 635272322537. The next prime is 635272322563. The reversal of 635272322540 is 45223272536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155747 + ... + 1137893.

It is an arithmetic number, because the mean of its divisors is an integer number (55588103578).

Almost surely, 2^635272322540 is an apocalyptic number.

It is an amenable number.

635272322540 is an abundant number, since it is smaller than the sum of its proper divisors (698842163332).

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

635272322540 is a wasteful number, since it uses less digits than its factorization.

635272322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014497 (or 1014495 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 635272322540 in words is "six hundred thirty-five billion, two hundred seventy-two million, three hundred twenty-two thousand, five hundred forty".