978472274879 has 4 divisors (see below), whose sum is σ = 1067424299880. Its totient is φ = 889520249880.

The previous prime is 978472274873. The next prime is 978472274891.

978472274879 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-978472274879 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 (978472274873) 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, 44476012484 + ... + 44476012505.

It is an arithmetic number, because the mean of its divisors is an integer number (266856074970).

Almost surely, 2^978472274879 is an apocalyptic number.

978472274879 is a deficient number, since it is larger than the sum of its proper divisors (88952025001).

978472274879 is a wasteful number, since it uses less digits than its factorization.

978472274879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88952025000.

The product of its digits is 796594176, while the sum is 74.

The spelling of 978472274879 in words is "nine hundred seventy-eight billion, four hundred seventy-two million, two hundred seventy-four thousand, eight hundred seventy-nine".