31676673689 has 2 divisors, whose sum is σ = 31676673690. Its totient is φ = 31676673688.

The previous prime is 31676673683. The next prime is 31676673761. The reversal of 31676673689 is 98637667613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29449305664 + 2227368025 = 171608^2 + 47195^2 .

It is a cyclic number.

It is not a de Polignac number, because 31676673689 - 2¹² = 31676669593 is a prime.

It is not a weakly prime, because it can be changed into another prime (31676673683) 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 as a sum of consecutive naturals, namely, 15838336844 + 15838336845.

It is an arithmetic number, because the mean of its divisors is an integer number (15838336845).

Almost surely, 2^31676673689 is an apocalyptic number.

It is an amenable number.

31676673689 is a deficient number, since it is larger than the sum of its proper divisors (1).

31676673689 is an equidigital number, since it uses as much as digits as its factorization.

31676673689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41150592, while the sum is 62.

The spelling of 31676673689 in words is "thirty-one billion, six hundred seventy-six million, six hundred seventy-three thousand, six hundred eighty-nine".