38421553879 has 6 divisors (see below), whose sum is σ = 39061744800. Its totient is φ = 37791688680.

The previous prime is 38421553847. The next prime is 38421553913. The reversal of 38421553879 is 97835512483.

38421553879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38421553879 - 2⁵ = 38421553847 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 (38421553979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5159079 + ... + 5166520.

It is an arithmetic number, because the mean of its divisors is an integer number (6510290800).

Almost surely, 2^38421553879 is an apocalyptic number.

38421553879 is a deficient number, since it is larger than the sum of its proper divisors (640190921).

38421553879 is an equidigital number, since it uses as much as digits as its factorization.

38421553879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325721 (or 10325660 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 38421553879 in words is "thirty-eight billion, four hundred twenty-one million, five hundred fifty-three thousand, eight hundred seventy-nine".