38317406399 has 4 divisors (see below), whose sum is σ = 38455736664. Its totient is φ = 38179076136.

The previous prime is 38317406389. The next prime is 38317406429. The reversal of 38317406399 is 99360471383.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38317406399 - 2¹⁶ = 38317340863 is a prime.

It is a super-2 number, since 2×38317406399² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38317406399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38317406359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69164717 + ... + 69165270.

It is an arithmetic number, because the mean of its divisors is an integer number (9613934166).

Almost surely, 2^38317406399 is an apocalyptic number.

38317406399 is a deficient number, since it is larger than the sum of its proper divisors (138330265).

38317406399 is a wasteful number, since it uses less digits than its factorization.

38317406399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138330264.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 38317406399 in words is "thirty-eight billion, three hundred seventeen million, four hundred six thousand, three hundred ninety-nine".