31379692127 has 4 divisors (see below), whose sum is σ = 35862505296. Its totient is φ = 26896878960.

The previous prime is 31379692111. The next prime is 31379692177. The reversal of 31379692127 is 72129697313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31379692127 - 2⁴ = 31379692111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31379692177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241406574 + ... + 2241406587.

It is an arithmetic number, because the mean of its divisors is an integer number (8965626324).

Almost surely, 2^31379692127 is an apocalyptic number.

31379692127 is a deficient number, since it is larger than the sum of its proper divisors (4482813169).

31379692127 is an equidigital number, since it uses as much as digits as its factorization.

31379692127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482813168.

The product of its digits is 857304, while the sum is 50.

The spelling of 31379692127 in words is "thirty-one billion, three hundred seventy-nine million, six hundred ninety-two thousand, one hundred twenty-seven".