908813157309 has 16 divisors (see below), whose sum is σ = 1348637616000. Its totient is φ = 604863949248.

The previous prime is 908813157299. The next prime is 908813157323. The reversal of 908813157309 is 903751318809.

It is not a de Polignac number, because 908813157309 - 2⁴ = 908813157293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908813157349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28080444 + ... + 28112789.

It is an arithmetic number, because the mean of its divisors is an integer number (84289851000).

Almost surely, 2^908813157309 is an apocalyptic number.

It is an amenable number.

908813157309 is a deficient number, since it is larger than the sum of its proper divisors (439824458691).

908813157309 is a wasteful number, since it uses less digits than its factorization.

908813157309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56193841 (or 56193835 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 908813157309 in words is "nine hundred eight billion, eight hundred thirteen million, one hundred fifty-seven thousand, three hundred nine".