38390859789 has 4 divisors (see below), whose sum is σ = 51187813056. Its totient is φ = 25593906524.

The previous prime is 38390859763. The next prime is 38390859803. The reversal of 38390859789 is 98795809383.

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.

It is a cyclic number.

It is not a de Polignac number, because 38390859789 - 2²⁴ = 38374082573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38390859709) 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, 6398476629 + ... + 6398476634.

It is an arithmetic number, because the mean of its divisors is an integer number (12796953264).

Almost surely, 2^38390859789 is an apocalyptic number.

It is an amenable number.

38390859789 is a deficient number, since it is larger than the sum of its proper divisors (12796953267).

38390859789 is a wasteful number, since it uses less digits than its factorization.

38390859789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796953266.

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 38390859789 in words is "thirty-eight billion, three hundred ninety million, eight hundred fifty-nine thousand, seven hundred eighty-nine".