31673196377 has 2 divisors, whose sum is σ = 31673196378. Its totient is φ = 31673196376.

The previous prime is 31673196343. The next prime is 31673196397. The reversal of 31673196377 is 77369137613.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30128627776 + 1544568601 = 173576^2 + 39301^2 .

It is a cyclic number.

It is not a de Polignac number, because 31673196377 - 2³⁰ = 30599454553 is a prime.

It is a super-2 number, since 2×31673196377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31673196397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15836598188 + 15836598189.

It is an arithmetic number, because the mean of its divisors is an integer number (15836598189).

Almost surely, 2^31673196377 is an apocalyptic number.

It is an amenable number.

31673196377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31673196377 is an equidigital number, since it uses as much as digits as its factorization.

31673196377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564, while the sum is 53.

The spelling of 31673196377 in words is "thirty-one billion, six hundred seventy-three million, one hundred ninety-six thousand, three hundred seventy-seven".