38811622315517 has 2 divisors, whose sum is σ = 38811622315518. Its totient is φ = 38811622315516.

The previous prime is 38811622315489. The next prime is 38811622315567. The reversal of 38811622315517 is 71551322611883.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27250133067556 + 11561489247961 = 5220166^2 + 3400219^2 .

It is a cyclic number.

It is not a de Polignac number, because 38811622315517 - 2²⁴ = 38811605538301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38811622315567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19405811157758 + 19405811157759.

It is an arithmetic number, because the mean of its divisors is an integer number (19405811157759).

Almost surely, 2^{38811622315517} is an apocalyptic number.

It is an amenable number.

38811622315517 is a deficient number, since it is larger than the sum of its proper divisors (1).

38811622315517 is an equidigital number, since it uses as much as digits as its factorization.

38811622315517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 53.

The spelling of 38811622315517 in words is "thirty-eight trillion, eight hundred eleven billion, six hundred twenty-two million, three hundred fifteen thousand, five hundred seventeen".