38682065864957 has 2 divisors, whose sum is σ = 38682065864958. Its totient is φ = 38682065864956.

The previous prime is 38682065864929. The next prime is 38682065865031. The reversal of 38682065864957 is 75946856028683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32138400017476 + 6543665847481 = 5669074^2 + 2558059^2 .

It is a cyclic number.

It is not a de Polignac number, because 38682065864957 - 2¹⁸ = 38682065602813 is a prime.

It is a super-2 number, since 2×38682065864957² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38682065864557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19341032932478 + 19341032932479.

It is an arithmetic number, because the mean of its divisors is an integer number (19341032932479).

Almost surely, 2^{38682065864957} is an apocalyptic number.

It is an amenable number.

38682065864957 is a deficient number, since it is larger than the sum of its proper divisors (1).

38682065864957 is an equidigital number, since it uses as much as digits as its factorization.

38682065864957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4180377600, while the sum is 77.

The spelling of 38682065864957 in words is "thirty-eight trillion, six hundred eighty-two billion, sixty-five million, eight hundred sixty-four thousand, nine hundred fifty-seven".