38164020399 has 16 divisors (see below), whose sum is σ = 56592620640. Its totient is φ = 25418681280.

The previous prime is 38164020397. The next prime is 38164020449. The reversal of 38164020399 is 99302046183.

It is a happy number.

38164020399 is a `hidden beast` number, since 381 + 64 + 0 + 203 + 9 + 9 = 666.

38164020399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38164020399 - 2¹ = 38164020397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38164020397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637462 + ... + 694755.

It is an arithmetic number, because the mean of its divisors is an integer number (3537038790).

Almost surely, 2^38164020399 is an apocalyptic number.

38164020399 is a deficient number, since it is larger than the sum of its proper divisors (18428600241).

38164020399 is a wasteful number, since it uses less digits than its factorization.

38164020399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333287 (or 1333281 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 38164020399 in words is "thirty-eight billion, one hundred sixty-four million, twenty thousand, three hundred ninety-nine".