390736747937 has 2 divisors, whose sum is σ = 390736747938. Its totient is φ = 390736747936.

The previous prime is 390736747909. The next prime is 390736748021. The reversal of 390736747937 is 739747637093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296546682721 + 94190065216 = 544561^2 + 306904^2 .

It is a cyclic number.

It is not a de Polignac number, because 390736747937 - 2¹² = 390736743841 is a prime.

It is not a weakly prime, because it can be changed into another prime (390736740937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195368373968 + 195368373969.

It is an arithmetic number, because the mean of its divisors is an integer number (195368373969).

Almost surely, 2^390736747937 is an apocalyptic number.

It is an amenable number.

390736747937 is a deficient number, since it is larger than the sum of its proper divisors (1).

390736747937 is an equidigital number, since it uses as much as digits as its factorization.

390736747937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126023688, while the sum is 65.

The spelling of 390736747937 in words is "three hundred ninety billion, seven hundred thirty-six million, seven hundred forty-seven thousand, nine hundred thirty-seven".