38515335923 has 2 divisors, whose sum is σ = 38515335924. Its totient is φ = 38515335922.

The previous prime is 38515335919. The next prime is 38515335959. The reversal of 38515335923 is 32953351583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38515335923 - 2² = 38515335919 is a prime.

It is a super-2 number, since 2×38515335923² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38515335913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19257667961 + 19257667962.

It is an arithmetic number, because the mean of its divisors is an integer number (19257667962).

Almost surely, 2^38515335923 is an apocalyptic number.

38515335923 is a deficient number, since it is larger than the sum of its proper divisors (1).

38515335923 is an equidigital number, since it uses as much as digits as its factorization.

38515335923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458000, while the sum is 47.

The spelling of 38515335923 in words is "thirty-eight billion, five hundred fifteen million, three hundred thirty-five thousand, nine hundred twenty-three".