157831406408 has 32 divisors (see below), whose sum is σ = 319909867200. Its totient is φ = 72568273728.

The previous prime is 157831406407. The next prime is 157831406423. The reversal of 157831406408 is 804604138751.

157831406408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (157831406407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857838 + ... + 2912541.

It is an arithmetic number, because the mean of its divisors is an integer number (9997183350).

Almost surely, 2^157831406408 is an apocalyptic number.

It is an amenable number.

157831406408 is an abundant number, since it is smaller than the sum of its proper divisors (162078460792).

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

157831406408 is a wasteful number, since it uses less digits than its factorization.

157831406408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770661 (or 5770657 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 157831406408 in words is "one hundred fifty-seven billion, eight hundred thirty-one million, four hundred six thousand, four hundred eight".