38934788251 has 2 divisors, whose sum is σ = 38934788252. Its totient is φ = 38934788250.

The previous prime is 38934788219. The next prime is 38934788261. The reversal of 38934788251 is 15288743983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38934788251 - 2⁵ = 38934788219 is a prime.

It is not a weakly prime, because it can be changed into another prime (38934788261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19467394125 + 19467394126.

It is an arithmetic number, because the mean of its divisors is an integer number (19467394126).

Almost surely, 2^38934788251 is an apocalyptic number.

38934788251 is a deficient number, since it is larger than the sum of its proper divisors (1).

38934788251 is an equidigital number, since it uses as much as digits as its factorization.

38934788251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 58.

The spelling of 38934788251 in words is "thirty-eight billion, nine hundred thirty-four million, seven hundred eighty-eight thousand, two hundred fifty-one".