979551144 has 360 divisors, whose sum is σ = 3355873290. Its totient is φ = 265161600.

The previous prime is 979551119. The next prime is 979551173. The reversal of 979551144 is 441155979.

979551144 is a `hidden beast` number, since 9 + 7 + 95 + 511 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 941876100 + 37675044 = 30690^2 + 6138^2 .

Its product of digits (226800) is a multiple of the sum of its prime divisors (60).

It is a self number, because there is not a number n which added to its sum of digits gives 979551144.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 31598409 + ... + 31598439.

Almost surely, 2^979551144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979551144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677936645).

979551144 is an abundant number, since it is smaller than the sum of its proper divisors (2376322146).

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

979551144 is a wasteful number, since it uses less digits than its factorization.

979551144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 60 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 979551144 is about 31297.7817744325. The cubic root of 979551144 is about 993.1367177881.

It can be divided in two parts, 97955 and 1144, that added together give a palindrome (99099).

The spelling of 979551144 in words is "nine hundred seventy-nine million, five hundred fifty-one thousand, one hundred forty-four".