798158000639 has 4 divisors (see below), whose sum is σ = 798168440256. Its totient is φ = 798147561024.

The previous prime is 798158000609. The next prime is 798158000663. The reversal of 798158000639 is 936000851897.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 798158000639 - 2²⁴ = 798141223423 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 (798158000609) 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, 5104274 + ... + 5258319.

It is an arithmetic number, because the mean of its divisors is an integer number (199542110064).

Almost surely, 2^798158000639 is an apocalyptic number.

798158000639 is a deficient number, since it is larger than the sum of its proper divisors (10439617).

798158000639 is a wasteful number, since it uses less digits than its factorization.

798158000639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439616.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 798158000639 in words is "seven hundred ninety-eight billion, one hundred fifty-eight million, six hundred thirty-nine", and thus it is an aban number.