38685387489 has 16 divisors (see below), whose sum is σ = 59016101760. Its totient is φ = 22080833280.

The previous prime is 38685387479. The next prime is 38685387511. The reversal of 38685387489 is 98478358683.

It is not a de Polignac number, because 38685387489 - 2⁴ = 38685387473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38685387449) 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, 1026994 + ... + 1063995.

It is an arithmetic number, because the mean of its divisors is an integer number (3688506360).

Almost surely, 2^38685387489 is an apocalyptic number.

It is an amenable number.

38685387489 is a deficient number, since it is larger than the sum of its proper divisors (20330714271).

38685387489 is a wasteful number, since it uses less digits than its factorization.

38685387489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091880.

The product of its digits is 278691840, while the sum is 69.

The spelling of 38685387489 in words is "thirty-eight billion, six hundred eighty-five million, three hundred eighty-seven thousand, four hundred eighty-nine".