31634846377 has 2 divisors, whose sum is σ = 31634846378. Its totient is φ = 31634846376.

The previous prime is 31634846371. The next prime is 31634846447. The reversal of 31634846377 is 77364843613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24861720976 + 6773125401 = 157676^2 + 82299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31634846377 is a prime.

It is a super-2 number, since 2×31634846377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31634846371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15817423188 + 15817423189.

It is an arithmetic number, because the mean of its divisors is an integer number (15817423189).

Almost surely, 2^31634846377 is an apocalyptic number.

It is an amenable number.

31634846377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31634846377 is an equidigital number, since it uses as much as digits as its factorization.

31634846377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 52.

The spelling of 31634846377 in words is "thirty-one billion, six hundred thirty-four million, eight hundred forty-six thousand, three hundred seventy-seven".