38457071989 has 16 divisors (see below), whose sum is σ = 44572008960. Its totient is φ = 32500137600.

The previous prime is 38457071987. The next prime is 38457072001. The reversal of 38457071989 is 98917075483.

38457071989 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 38457071989 - 2¹ = 38457071987 is a prime.

It is a super-2 number, since 2×38457071989² (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 (38457071987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55177 + ... + 282769.

It is an arithmetic number, because the mean of its divisors is an integer number (2785750560).

Almost surely, 2^38457071989 is an apocalyptic number.

It is an amenable number.

38457071989 is a deficient number, since it is larger than the sum of its proper divisors (6114936971).

38457071989 is a wasteful number, since it uses less digits than its factorization.

38457071989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227940.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 38457071989 in words is "thirty-eight billion, four hundred fifty-seven million, seventy-one thousand, nine hundred eighty-nine".