38533888685 has 4 divisors (see below), whose sum is σ = 46240666428. Its totient is φ = 30827110944.

The previous prime is 38533888643. The next prime is 38533888703. The reversal of 38533888685 is 58688833583.

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 5469194116 + 33064694569 = 73954^2 + 181837^2 .

It is a cyclic number.

It is not a de Polignac number, because 38533888685 - 2⁶ = 38533888621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3853388864 + ... + 3853388873.

It is an arithmetic number, because the mean of its divisors is an integer number (11560166607).

Almost surely, 2^38533888685 is an apocalyptic number.

It is an amenable number.

38533888685 is a deficient number, since it is larger than the sum of its proper divisors (7706777743).

38533888685 is an equidigital number, since it uses as much as digits as its factorization.

38533888685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706777742.

The product of its digits is 132710400, while the sum is 65.

The spelling of 38533888685 in words is "thirty-eight billion, five hundred thirty-three million, eight hundred eighty-eight thousand, six hundred eighty-five".