31454364632077 has 2 divisors, whose sum is σ = 31454364632078. Its totient is φ = 31454364632076.

The previous prime is 31454364632027. The next prime is 31454364632153. The reversal of 31454364632077 is 77023646345413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26233921072836 + 5220443559241 = 5121906^2 + 2284829^2 .

It is a cyclic number.

It is not a de Polignac number, because 31454364632077 - 2²⁷ = 31454230414349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31454364632027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15727182316038 + 15727182316039.

It is an arithmetic number, because the mean of its divisors is an integer number (15727182316039).

Almost surely, 2^{31454364632077} is an apocalyptic number.

It is an amenable number.

31454364632077 is a deficient number, since it is larger than the sum of its proper divisors (1).

31454364632077 is an equidigital number, since it uses as much as digits as its factorization.

31454364632077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 55.

The spelling of 31454364632077 in words is "thirty-one trillion, four hundred fifty-four billion, three hundred sixty-four million, six hundred thirty-two thousand, seventy-seven".