31059947076479 has 4 divisors (see below), whose sum is σ = 31076234412984. Its totient is φ = 31043659739976.

The previous prime is 31059947076469. The next prime is 31059947076523. The reversal of 31059947076479 is 97467074995013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31059947076479 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 (31059947076449) 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, 8143665392 + ... + 8143669205.

It is an arithmetic number, because the mean of its divisors is an integer number (7769058603246).

Almost surely, 2^{31059947076479} is an apocalyptic number.

31059947076479 is a deficient number, since it is larger than the sum of its proper divisors (16287336505).

31059947076479 is a wasteful number, since it uses less digits than its factorization.

31059947076479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16287336504.

The product of its (nonzero) digits is 360067680, while the sum is 71.

The spelling of 31059947076479 in words is "thirty-one trillion, fifty-nine billion, nine hundred forty-seven million, seventy-six thousand, four hundred seventy-nine".