38390275391 has 8 divisors (see below), whose sum is σ = 41668913664. Its totient is φ = 35158142880.

The previous prime is 38390275373. The next prime is 38390275393. The reversal of 38390275391 is 19357209383.

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

It is a cyclic number.

It is not a de Polignac number, because 38390275391 - 2⁶ = 38390275327 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 (38390275393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11624720 + ... + 11628021.

It is an arithmetic number, because the mean of its divisors is an integer number (5208614208).

Almost surely, 2^38390275391 is an apocalyptic number.

38390275391 is a deficient number, since it is larger than the sum of its proper divisors (3278638273).

38390275391 is a wasteful number, since it uses less digits than its factorization.

38390275391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23252881.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 38390275391 in words is "thirty-eight billion, three hundred ninety million, two hundred seventy-five thousand, three hundred ninety-one".