38401582356831 has 4 divisors (see below), whose sum is σ = 51202109809112. Its totient is φ = 25601054904552.

The previous prime is 38401582356743. The next prime is 38401582356883. The reversal of 38401582356831 is 13865328510483.

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

It is not a de Polignac number, because 38401582356831 - 2¹¹ = 38401582354783 is a prime.

It is a super-2 number, since 2×38401582356831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38401582354831) 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, 6400263726136 + ... + 6400263726141.

It is an arithmetic number, because the mean of its divisors is an integer number (12800527452278).

Almost surely, 2^{38401582356831} is an apocalyptic number.

38401582356831 is a deficient number, since it is larger than the sum of its proper divisors (12800527452281).

38401582356831 is a wasteful number, since it uses less digits than its factorization.

38401582356831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800527452280.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 38401582356831 in words is "thirty-eight trillion, four hundred one billion, five hundred eighty-two million, three hundred fifty-six thousand, eight hundred thirty-one".