38368868537 has 2 divisors, whose sum is σ = 38368868538. Its totient is φ = 38368868536.

The previous prime is 38368868521. The next prime is 38368868563. The reversal of 38368868537 is 73586886383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32291730601 + 6077137936 = 179699^2 + 77956^2 .

It is a cyclic number.

It is not a de Polignac number, because 38368868537 - 2⁴ = 38368868521 is a prime.

It is not a weakly prime, because it can be changed into another prime (38368868737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19184434268 + 19184434269.

It is an arithmetic number, because the mean of its divisors is an integer number (19184434269).

Almost surely, 2^38368868537 is an apocalyptic number.

It is an amenable number.

38368868537 is a deficient number, since it is larger than the sum of its proper divisors (1).

38368868537 is an equidigital number, since it uses as much as digits as its factorization.

38368868537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 65.

The spelling of 38368868537 in words is "thirty-eight billion, three hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred thirty-seven".