979451766618 has 64 divisors (see below), whose sum is σ = 2213339003904. Its totient is φ = 286867008000.

The previous prime is 979451766589. The next prime is 979451766661. The reversal of 979451766618 is 816667154979.

It is a super-2 number, since 2×979451766618² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3172723 + ... + 3467718.

It is an arithmetic number, because the mean of its divisors is an integer number (34583421936).

Almost surely, 2^979451766618 is an apocalyptic number.

979451766618 is an abundant number, since it is smaller than the sum of its proper divisors (1233887237286).

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

979451766618 is a wasteful number, since it uses less digits than its factorization.

979451766618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640551.

The product of its digits is 137168640, while the sum is 69.

The spelling of 979451766618 in words is "nine hundred seventy-nine billion, four hundred fifty-one million, seven hundred sixty-six thousand, six hundred eighteen".