38919315457 has 16 divisors (see below), whose sum is σ = 42892338240. Its totient is φ = 35019016000.

The previous prime is 38919315451. The next prime is 38919315497. The reversal of 38919315457 is 75451391983.

It is a cyclic number.

It is not a de Polignac number, because 38919315457 - 2⁷ = 38919315329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38919315398 and 38919315407.

It is not an unprimeable number, because it can be changed into a prime (38919315451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6088419 + ... + 6094807.

It is an arithmetic number, because the mean of its divisors is an integer number (2680771140).

Almost surely, 2^38919315457 is an apocalyptic number.

It is an amenable number.

38919315457 is a deficient number, since it is larger than the sum of its proper divisors (3973022783).

38919315457 is a wasteful number, since it uses less digits than its factorization.

38919315457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984.

The product of its digits is 4082400, while the sum is 55.

The spelling of 38919315457 in words is "thirty-eight billion, nine hundred nineteen million, three hundred fifteen thousand, four hundred fifty-seven".