979051262640 has 160 divisors (see below), whose sum is σ = 3324166739712. Its totient is φ = 236400000000.

The previous prime is 979051262591. The next prime is 979051262647. The reversal of 979051262640 is 46262150979.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (979051262647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76111 + ... + 1401390.

Almost surely, 2^979051262640 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 979051262640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1662083369856).

979051262640 is an abundant number, since it is smaller than the sum of its proper divisors (2345115477072).

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

979051262640 is a wasteful number, since it uses less digits than its factorization.

979051262640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477779 (or 1477773 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 979051262640 in words is "nine hundred seventy-nine billion, fifty-one million, two hundred sixty-two thousand, six hundred forty".