979728881325 has 24 divisors (see below), whose sum is σ = 1620421137600. Its totient is φ = 522327644160.

The previous prime is 979728881317. The next prime is 979728881333. The reversal of 979728881325 is 523188827979.

It is an interprime number because it is at equal distance from previous prime (979728881317) and next prime (979728881333).

It is not a de Polignac number, because 979728881325 - 2³ = 979728881317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979728881325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2227305 + ... + 2630654.

It is an arithmetic number, because the mean of its divisors is an integer number (67517547400).

Almost surely, 2^979728881325 is an apocalyptic number.

It is an amenable number.

979728881325 is a deficient number, since it is larger than the sum of its proper divisors (640692256275).

979728881325 is a wasteful number, since it uses less digits than its factorization.

979728881325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860661 (or 4860656 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 69.

The spelling of 979728881325 in words is "nine hundred seventy-nine billion, seven hundred twenty-eight million, eight hundred eighty-one thousand, three hundred twenty-five".