31794663827 has 4 divisors (see below), whose sum is σ = 32820298176. Its totient is φ = 30769029480.

The previous prime is 31794663809. The next prime is 31794663839. The reversal of 31794663827 is 72836649713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72836649713 = 93893 ⋅775741.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31794663827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31794663127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512817128 + ... + 512817189.

It is an arithmetic number, because the mean of its divisors is an integer number (8205074544).

Almost surely, 2^31794663827 is an apocalyptic number.

31794663827 is a deficient number, since it is larger than the sum of its proper divisors (1025634349).

31794663827 is a wasteful number, since it uses less digits than its factorization.

31794663827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025634348.

The product of its digits is 9144576, while the sum is 56.

The spelling of 31794663827 in words is "thirty-one billion, seven hundred ninety-four million, six hundred sixty-three thousand, eight hundred twenty-seven".