38979274531 has 2 divisors, whose sum is σ = 38979274532. Its totient is φ = 38979274530.

The previous prime is 38979274457. The next prime is 38979274567. The reversal of 38979274531 is 13547297983.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38979274531 is a prime.

It is a super-2 number, since 2×38979274531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38979274031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19489637265 + 19489637266.

It is an arithmetic number, because the mean of its divisors is an integer number (19489637266).

Almost surely, 2^38979274531 is an apocalyptic number.

38979274531 is a deficient number, since it is larger than the sum of its proper divisors (1).

38979274531 is an equidigital number, since it uses as much as digits as its factorization.

38979274531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 58.

The spelling of 38979274531 in words is "thirty-eight billion, nine hundred seventy-nine million, two hundred seventy-four thousand, five hundred thirty-one".