32157853440 has 72 divisors (see below), whose sum is σ = 102704156688. Its totient is φ = 8575426560.

The previous prime is 32157853439. The next prime is 32157853477. The reversal of 32157853440 is 4435875123.

It is a junction number, because it is equal to n+sod(n) for n = 32157853392 and 32157853401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4183381 + ... + 4191060.

Almost surely, 2^32157853440 is an apocalyptic number.

32157853440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32157853440 is an abundant number, since it is smaller than the sum of its proper divisors (70546303248).

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

32157853440 is an equidigital number, since it uses as much as digits as its factorization.

32157853440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374465 (or 8374451 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 32157853440 in words is "thirty-two billion, one hundred fifty-seven million, eight hundred fifty-three thousand, four hundred forty".