79021464247568 has 10 divisors (see below), whose sum is σ = 153104086979694. Its totient is φ = 39510732123776.

The previous prime is 79021464247541. The next prime is 79021464247571. The reversal of 79021464247568 is 86574246412097.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48824988550144 + 30196475697424 = 6987488^2 + 5495132^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469420757721 + ... + 2469420757752.

Almost surely, 2^{79021464247568} is an apocalyptic number.

It is an amenable number.

79021464247568 is a deficient number, since it is larger than the sum of its proper divisors (74082622732126).

79021464247568 is a wasteful number, since it uses less digits than its factorization.

79021464247568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938841515481 (or 4938841515475 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 65.

The spelling of 79021464247568 in words is "seventy-nine trillion, twenty-one billion, four hundred sixty-four million, two hundred forty-seven thousand, five hundred sixty-eight".