31422672553 has 2 divisors, whose sum is σ = 31422672554. Its totient is φ = 31422672552.

The previous prime is 31422672529. The next prime is 31422672583. The reversal of 31422672553 is 35527622413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30327525904 + 1095146649 = 174148^2 + 33093^2 .

It is a cyclic number.

It is not a de Polignac number, because 31422672553 - 2²⁹ = 30885801641 is a prime.

It is not a weakly prime, because it can be changed into another prime (31422672583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711336276 + 15711336277.

It is an arithmetic number, because the mean of its divisors is an integer number (15711336277).

Almost surely, 2^31422672553 is an apocalyptic number.

It is an amenable number.

31422672553 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422672553 is an equidigital number, since it uses as much as digits as its factorization.

31422672553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The spelling of 31422672553 in words is "thirty-one billion, four hundred twenty-two million, six hundred seventy-two thousand, five hundred fifty-three".