38055547397 has 4 divisors (see below), whose sum is σ = 43492054176. Its totient is φ = 32619040620.

The previous prime is 38055547381. The next prime is 38055547399. The reversal of 38055547397 is 79374555083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79374555083 = 113 ⋅702429691.

It is a cyclic number.

It is not a de Polignac number, because 38055547397 - 2⁴ = 38055547381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38055547399) 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, 2718253379 + ... + 2718253392.

It is an arithmetic number, because the mean of its divisors is an integer number (10873013544).

Almost surely, 2^38055547397 is an apocalyptic number.

It is an amenable number.

38055547397 is a deficient number, since it is larger than the sum of its proper divisors (5436506779).

38055547397 is an equidigital number, since it uses as much as digits as its factorization.

38055547397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436506778.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 38055547397 in words is "thirty-eight billion, fifty-five million, five hundred forty-seven thousand, three hundred ninety-seven".