38575673021 has 4 divisors (see below), whose sum is σ = 39104106972. Its totient is φ = 38047239072.

The previous prime is 38575672973. The next prime is 38575673023. The reversal of 38575673021 is 12037657583.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8960704921 + 29614968100 = 94661^2 + 172090^2 .

It is a cyclic number.

It is not a de Polignac number, because 38575673021 - 2²² = 38571478717 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 (38575673023) 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, 264216866 + ... + 264217011.

It is an arithmetic number, because the mean of its divisors is an integer number (9776026743).

Almost surely, 2^38575673021 is an apocalyptic number.

It is an amenable number.

38575673021 is a deficient number, since it is larger than the sum of its proper divisors (528433951).

38575673021 is an equidigital number, since it uses as much as digits as its factorization.

38575673021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528433950.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 38575673021 in words is "thirty-eight billion, five hundred seventy-five million, six hundred seventy-three thousand, twenty-one".