79776496253 has 4 divisors (see below), whose sum is σ = 82349931648.
Its totient is φ = 77203060860.
The previous prime is 79776496229. The next prime is 79776496271. The reversal of 79776496253 is 35269467797.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 79776496253 - 210 = 79776495229 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 79776496253.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (79776496213) 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 3 ways as a sum of consecutive naturals, for example, 1286717651 + ... + 1286717712.
It is an arithmetic number, because the mean of its divisors is an integer number (20587482912).
Almost surely, 279776496253 is an apocalyptic number.
It is an amenable number.
79776496253 is a deficient number, since it is larger than the sum of its proper divisors (2573435395).
79776496253 is a wasteful number, since it uses less digits than its factorization.
79776496253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2573435394.
The product of its digits is 120022560, while the sum is 65.
The spelling of 79776496253 in words is "seventy-nine billion, seven hundred seventy-six million, four hundred ninety-six thousand, two hundred fifty-three".