31168072793 has 64 divisors (see below), whose sum is σ = 38930841600. Its totient is φ = 24564384000.

The previous prime is 31168072787. The next prime is 31168072807. The reversal of 31168072793 is 39727086113.

It is not a de Polignac number, because 31168072793 - 2¹⁰ = 31168071769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31168072703) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21361898 + ... + 21363356.

It is an arithmetic number, because the mean of its divisors is an integer number (608294400).

Almost surely, 2^31168072793 is an apocalyptic number.

It is an amenable number.

31168072793 is a deficient number, since it is larger than the sum of its proper divisors (7762768807).

31168072793 is a wasteful number, since it uses less digits than its factorization.

31168072793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 31168072793 in words is "thirty-one billion, one hundred sixty-eight million, seventy-two thousand, seven hundred ninety-three".