39490275361 has 2 divisors, whose sum is σ = 39490275362. Its totient is φ = 39490275360.

The previous prime is 39490275329. The next prime is 39490275397. The reversal of 39490275361 is 16357209493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37463925136 + 2026350225 = 193556^2 + 45015^2 .

It is an emirp because it is prime and its reverse (16357209493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39490275361 - 2⁵ = 39490275329 is a prime.

It is not a weakly prime, because it can be changed into another prime (39490275061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19745137680 + 19745137681.

It is an arithmetic number, because the mean of its divisors is an integer number (19745137681).

Almost surely, 2^39490275361 is an apocalyptic number.

It is an amenable number.

39490275361 is a deficient number, since it is larger than the sum of its proper divisors (1).

39490275361 is an equidigital number, since it uses as much as digits as its factorization.

39490275361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 39490275361 in words is "thirty-nine billion, four hundred ninety million, two hundred seventy-five thousand, three hundred sixty-one".