31424085929 has 2 divisors, whose sum is σ = 31424085930. Its totient is φ = 31424085928.

The previous prime is 31424085923. The next prime is 31424085949. The reversal of 31424085929 is 92958042413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18286341529 + 13137744400 = 135227^2 + 114620^2 .

It is a cyclic number.

It is not a de Polignac number, because 31424085929 - 2²⁰ = 31423037353 is a prime.

It is not a weakly prime, because it can be changed into another prime (31424085923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712042964 + 15712042965.

It is an arithmetic number, because the mean of its divisors is an integer number (15712042965).

Almost surely, 2^31424085929 is an apocalyptic number.

It is an amenable number.

31424085929 is a deficient number, since it is larger than the sum of its proper divisors (1).

31424085929 is an equidigital number, since it uses as much as digits as its factorization.

31424085929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 31424085929 in words is "thirty-one billion, four hundred twenty-four million, eighty-five thousand, nine hundred twenty-nine".