79443661552 has 10 divisors (see below), whose sum is σ = 153922094288. Its totient is φ = 39721830768.

The previous prime is 79443661547. The next prime is 79443661553. The reversal of 79443661552 is 25516634497.

It is a super-2 number, since 2×79443661552² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79443661552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79443661553) 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 as a sum of consecutive naturals, namely, 2482614408 + ... + 2482614439.

Almost surely, 2^79443661552 is an apocalyptic number.

It is an amenable number.

79443661552 is a deficient number, since it is larger than the sum of its proper divisors (74478432736).

79443661552 is a wasteful number, since it uses less digits than its factorization.

79443661552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965228855 (or 4965228849 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 52.

The spelling of 79443661552 in words is "seventy-nine billion, four hundred forty-three million, six hundred sixty-one thousand, five hundred fifty-two".