31400468157 has 16 divisors (see below), whose sum is σ = 42910193088. Its totient is φ = 20412712320.

The previous prime is 31400468147. The next prime is 31400468179. The reversal of 31400468157 is 75186400413.

It is not a de Polignac number, because 31400468157 - 2⁶ = 31400468093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400468147) 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, 182643 + ... + 310095.

It is an arithmetic number, because the mean of its divisors is an integer number (2681887068).

Almost surely, 2^31400468157 is an apocalyptic number.

It is an amenable number.

31400468157 is a deficient number, since it is larger than the sum of its proper divisors (11509724931).

31400468157 is a wasteful number, since it uses less digits than its factorization.

31400468157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129500.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 31400468157 in words is "thirty-one billion, four hundred million, four hundred sixty-eight thousand, one hundred fifty-seven".