38806385431 has 16 divisors (see below), whose sum is σ = 42668398080. Its totient is φ = 35000421120.

The previous prime is 38806385389. The next prime is 38806385477. The reversal of 38806385431 is 13458360883.

It is a cyclic number.

It is not a de Polignac number, because 38806385431 - 2⁹ = 38806384919 is a prime.

It is a super-2 number, since 2×38806385431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38806385731) 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, 2412391 + ... + 2428423.

It is an arithmetic number, because the mean of its divisors is an integer number (2666774880).

Almost surely, 2^38806385431 is an apocalyptic number.

38806385431 is a deficient number, since it is larger than the sum of its proper divisors (3862012649).

38806385431 is a wasteful number, since it uses less digits than its factorization.

38806385431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17766.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 38806385431 in words is "thirty-eight billion, eight hundred six million, three hundred eighty-five thousand, four hundred thirty-one".