38397542399 has 4 divisors (see below), whose sum is σ = 38413431264. Its totient is φ = 38381653536.

The previous prime is 38397542383. The next prime is 38397542401. The reversal of 38397542399 is 99324579383.

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 38397542399 - 2⁴ = 38397542383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38397542299) 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, 7940807 + ... + 7945640.

It is an arithmetic number, because the mean of its divisors is an integer number (9603357816).

Almost surely, 2^38397542399 is an apocalyptic number.

38397542399 is a deficient number, since it is larger than the sum of its proper divisors (15888865).

38397542399 is a wasteful number, since it uses less digits than its factorization.

38397542399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15888864.

The product of its digits is 44089920, while the sum is 62.

The spelling of 38397542399 in words is "thirty-eight billion, three hundred ninety-seven million, five hundred forty-two thousand, three hundred ninety-nine".