31928376329 has 2 divisors, whose sum is σ = 31928376330. Its totient is φ = 31928376328.

The previous prime is 31928376307. The next prime is 31928376341. The reversal of 31928376329 is 92367382913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19923887104 + 12004489225 = 141152^2 + 109565^2 .

It is a cyclic number.

It is not a de Polignac number, because 31928376329 - 2¹² = 31928372233 is a prime.

It is not a weakly prime, because it can be changed into another prime (31928376629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15964188164 + 15964188165.

It is an arithmetic number, because the mean of its divisors is an integer number (15964188165).

Almost surely, 2^31928376329 is an apocalyptic number.

It is an amenable number.

31928376329 is a deficient number, since it is larger than the sum of its proper divisors (1).

31928376329 is an equidigital number, since it uses as much as digits as its factorization.

31928376329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 53.

The spelling of 31928376329 in words is "thirty-one billion, nine hundred twenty-eight million, three hundred seventy-six thousand, three hundred twenty-nine".