38477457831 has 8 divisors (see below), whose sum is σ = 51832177264. Its totient is φ = 25387188480.

The previous prime is 38477457803. The next prime is 38477457833. The reversal of 38477457831 is 13875477483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38477457831 - 2¹⁰ = 38477456807 is a prime.

It is a super-2 number, since 2×38477457831² (a number of 22 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 (38477457833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66112180 + ... + 66112761.

It is an arithmetic number, because the mean of its divisors is an integer number (6479022158).

Almost surely, 2^38477457831 is an apocalyptic number.

38477457831 is a deficient number, since it is larger than the sum of its proper divisors (13354719433).

38477457831 is a wasteful number, since it uses less digits than its factorization.

38477457831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132225041.

The product of its digits is 15805440, while the sum is 57.

The spelling of 38477457831 in words is "thirty-eight billion, four hundred seventy-seven million, four hundred fifty-seven thousand, eight hundred thirty-one".