39314374721 has 2 divisors, whose sum is σ = 39314374722. Its totient is φ = 39314374720.

The previous prime is 39314374711. The next prime is 39314374739. The reversal of 39314374721 is 12747341393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29804224321 + 9510150400 = 172639^2 + 97520^2 .

It is a cyclic number.

It is not a de Polignac number, because 39314374721 - 2¹⁴ = 39314358337 is a prime.

It is not a weakly prime, because it can be changed into another prime (39314374711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19657187360 + 19657187361.

It is an arithmetic number, because the mean of its divisors is an integer number (19657187361).

Almost surely, 2^39314374721 is an apocalyptic number.

It is an amenable number.

39314374721 is a deficient number, since it is larger than the sum of its proper divisors (1).

39314374721 is an equidigital number, since it uses as much as digits as its factorization.

39314374721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 44.

The spelling of 39314374721 in words is "thirty-nine billion, three hundred fourteen million, three hundred seventy-four thousand, seven hundred twenty-one".