38918714170957 has 2 divisors, whose sum is σ = 38918714170958. Its totient is φ = 38918714170956.

The previous prime is 38918714170943. The next prime is 38918714170969. The reversal of 38918714170957 is 75907141781983.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26527145503401 + 12391568667556 = 5150451^2 + 3520166^2 .

It is a cyclic number.

It is not a de Polignac number, because 38918714170957 - 2⁷ = 38918714170829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38918714170927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19459357085478 + 19459357085479.

It is an arithmetic number, because the mean of its divisors is an integer number (19459357085479).

Almost surely, 2^{38918714170957} is an apocalyptic number.

It is an amenable number.

38918714170957 is a deficient number, since it is larger than the sum of its proper divisors (1).

38918714170957 is an equidigital number, since it uses as much as digits as its factorization.

38918714170957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 106686720, while the sum is 70.

The spelling of 38918714170957 in words is "thirty-eight trillion, nine hundred eighteen billion, seven hundred fourteen million, one hundred seventy thousand, nine hundred fifty-seven".