31046492977 has 4 divisors (see below), whose sum is σ = 31047333696. Its totient is φ = 31045652260.

The previous prime is 31046492951. The next prime is 31046492989. The reversal of 31046492977 is 77929464013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31046492977 - 2¹¹ = 31046490929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31046499977) 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, 362293 + ... + 439714.

It is an arithmetic number, because the mean of its divisors is an integer number (7761833424).

Almost surely, 2^31046492977 is an apocalyptic number.

It is an amenable number.

31046492977 is a deficient number, since it is larger than the sum of its proper divisors (840719).

31046492977 is an equidigital number, since it uses as much as digits as its factorization.

31046492977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840718.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 31046492977 in words is "thirty-one billion, forty-six million, four hundred ninety-two thousand, nine hundred seventy-seven".