38645268489 has 6 divisors (see below), whose sum is σ = 55820943386. Its totient is φ = 25763512320.

The previous prime is 38645268457. The next prime is 38645268491. The reversal of 38645268489 is 98486254683.

38645268489 is a `hidden beast` number, since 3 + 8 + 64 + 526 + 8 + 48 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38618145225 + 27123264 = 196515^2 + 5208^2 .

It is not a de Polignac number, because 38645268489 - 2⁵ = 38645268457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38645268289) 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, 2146959352 + ... + 2146959369.

Almost surely, 2^38645268489 is an apocalyptic number.

It is an amenable number.

38645268489 is a deficient number, since it is larger than the sum of its proper divisors (17175674897).

38645268489 is a wasteful number, since it uses less digits than its factorization.

38645268489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293918727 (or 4293918724 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 38645268489 in words is "thirty-eight billion, six hundred forty-five million, two hundred sixty-eight thousand, four hundred eighty-nine".