31696015084777 has 2 divisors, whose sum is σ = 31696015084778. Its totient is φ = 31696015084776.

The previous prime is 31696015084757. The next prime is 31696015084829. The reversal of 31696015084777 is 77748051069613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31674789217296 + 21225867481 = 5628036^2 + 145691^2 .

It is a cyclic number.

It is not a de Polignac number, because 31696015084777 - 2²³ = 31696006696169 is a prime.

It is a super-2 number, since 2×31696015084777² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31696015084757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15848007542388 + 15848007542389.

It is an arithmetic number, because the mean of its divisors is an integer number (15848007542389).

Almost surely, 2^{31696015084777} is an apocalyptic number.

It is an amenable number.

31696015084777 is a deficient number, since it is larger than the sum of its proper divisors (1).

31696015084777 is an equidigital number, since it uses as much as digits as its factorization.

31696015084777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 31696015084777 in words is "thirty-one trillion, six hundred ninety-six billion, fifteen million, eighty-four thousand, seven hundred seventy-seven".