38856397585 has 8 divisors (see below), whose sum is σ = 46633905576. Its totient is φ = 31080965760.

The previous prime is 38856397529. The next prime is 38856397607. The reversal of 38856397585 is 58579365883.

It can be written as a sum of positive squares in 4 ways, for example, as 2603856784 + 36252540801 = 51028^2 + 190401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38856397585 - 2²³ = 38848008977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38856397585.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477564 + ... + 552973.

It is an arithmetic number, because the mean of its divisors is an integer number (5829238197).

Almost surely, 2^38856397585 is an apocalyptic number.

It is an amenable number.

38856397585 is a deficient number, since it is larger than the sum of its proper divisors (7777507991).

38856397585 is a wasteful number, since it uses less digits than its factorization.

38856397585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038083.

The product of its digits is 217728000, while the sum is 67.

The spelling of 38856397585 in words is "thirty-eight billion, eight hundred fifty-six million, three hundred ninety-seven thousand, five hundred eighty-five".