979521772320 has 384 divisors, whose sum is σ = 4219480097280. Its totient is φ = 206668247040.

The previous prime is 979521772303. The next prime is 979521772357. The reversal of 979521772320 is 23277125979.

It is a happy number.

979521772320 is a `hidden beast` number, since 9 + 7 + 9 + 521 + 77 + 23 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 852711 + ... + 1638950.

It is an arithmetic number, because the mean of its divisors is an integer number (10988229420).

Almost surely, 2^979521772320 is an apocalyptic number.

979521772320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

979521772320 is an abundant number, since it is smaller than the sum of its proper divisors (3239958324960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979521772320 is a wasteful number, since it uses less digits than its factorization.

979521772320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491705 (or 2491691 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 54.

The spelling of 979521772320 in words is "nine hundred seventy-nine billion, five hundred twenty-one million, seven hundred seventy-two thousand, three hundred twenty".