979549774659 has 12 divisors (see below), whose sum is σ = 1425084406200. Its totient is φ = 648335101824.

The previous prime is 979549774639. The next prime is 979549774663. The reversal of 979549774659 is 956477945979.

979549774659 is a `hidden beast` number, since 9 + 7 + 9 + 5 + 497 + 74 + 6 + 59 = 666.

It is not a de Polignac number, because 979549774659 - 2¹³ = 979549766467 is a prime.

It is a super-2 number, since 2×979549774659² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (979549774639) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 391505454 + ... + 391507955.

It is an arithmetic number, because the mean of its divisors is an integer number (118757033850).

Almost surely, 2^979549774659 is an apocalyptic number.

979549774659 is a deficient number, since it is larger than the sum of its proper divisors (445534631541).

979549774659 is a wasteful number, since it uses less digits than its factorization.

979549774659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783013554 (or 783013551 counting only the distinct ones).

The product of its digits is 5401015200, while the sum is 81.

The spelling of 979549774659 in words is "nine hundred seventy-nine billion, five hundred forty-nine million, seven hundred seventy-four thousand, six hundred fifty-nine".