38856397597 has 4 divisors (see below), whose sum is σ = 38868073020. Its totient is φ = 38844722176.

The previous prime is 38856397529. The next prime is 38856397607. The reversal of 38856397597 is 79579365883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79579365883 = 167 ⋅476523149.

It can be written as a sum of positive squares in 2 ways, for example, as 4638427236 + 34217970361 = 68106^2 + 184981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38856397597 is a prime.

It is a super-2 number, since 2×38856397597² (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 (38856398597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5832718 + ... + 5839375.

It is an arithmetic number, because the mean of its divisors is an integer number (9717018255).

Almost surely, 2^38856397597 is an apocalyptic number.

It is an amenable number.

38856397597 is a deficient number, since it is larger than the sum of its proper divisors (11675423).

38856397597 is a wasteful number, since it uses less digits than its factorization.

38856397597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11675422.

The product of its digits is 342921600, while the sum is 70.

The spelling of 38856397597 in words is "thirty-eight billion, eight hundred fifty-six million, three hundred ninety-seven thousand, five hundred ninety-seven".