31077367897 has 8 divisors (see below), whose sum is σ = 31518538560. Its totient is φ = 30636293520.

The previous prime is 31077367889. The next prime is 31077367913. The reversal of 31077367897 is 79876377013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31077367897 - 2³ = 31077367889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31077367697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848479 + ... + 884347.

It is an arithmetic number, because the mean of its divisors is an integer number (3939817320).

Almost surely, 2^31077367897 is an apocalyptic number.

It is an amenable number.

31077367897 is a deficient number, since it is larger than the sum of its proper divisors (441170663).

31077367897 is a wasteful number, since it uses less digits than its factorization.

31077367897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48143.

The product of its (nonzero) digits is 9335088, while the sum is 58.

The spelling of 31077367897 in words is "thirty-one billion, seventy-seven million, three hundred sixty-seven thousand, eight hundred ninety-seven".