79070065636 has 27 divisors (see below), whose sum is σ = 140816756451. Its totient is φ = 38848638264.

The previous prime is 79070065603. The next prime is 79070065639. The reversal of 79070065636 is 63656007097.

The square root of 79070065636 is 281194.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79070065636.

It is not an unprimeable number, because it can be changed into a prime (79070065639) 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 8 ways as a sum of consecutive naturals, for example, 33179701 + ... + 33182083.

Almost surely, 2^79070065636 is an apocalyptic number.

79070065636 is the 281194-th square number.

It is an amenable number.

79070065636 is a deficient number, since it is larger than the sum of its proper divisors (61746690815).

79070065636 is an frugal number, since it uses more digits than its factorization.

79070065636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 49.

Multiplying 79070065636 by its sum of digits (49), we get a square (3874433216164 = 1968358²).

The spelling of 79070065636 in words is "seventy-nine billion, seventy million, sixty-five thousand, six hundred thirty-six".