974889929988479 has 4 divisors (see below), whose sum is σ = 974993213177280. Its totient is φ = 974786646799680.

The previous prime is 974889929988413. The next prime is 974889929988517.

974889929988479 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974889929988479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 974889929988479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974889929978479) 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, 51641580242 + ... + 51641599119.

It is an arithmetic number, because the mean of its divisors is an integer number (243748303294320).

Almost surely, 2^{974889929988479} is an apocalyptic number.

974889929988479 is a deficient number, since it is larger than the sum of its proper divisors (103283188801).

974889929988479 is a wasteful number, since it uses less digits than its factorization.

974889929988479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103283188800.

The product of its digits is 3413194702848, while the sum is 110.

The spelling of 974889929988479 in words is "nine hundred seventy-four trillion, eight hundred eighty-nine billion, nine hundred twenty-nine million, nine hundred eighty-eight thousand, four hundred seventy-nine".