79776872703 has 120 divisors (see below), whose sum is σ = 135226775376. Its totient is φ = 46455033600.

The previous prime is 79776872683. The next prime is 79776872719. The reversal of 79776872703 is 30727867797.

It is a Cunningham number, because it is equal to 282448²-1.

It is not a de Polignac number, because 79776872703 - 2⁵ = 79776872671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79776872753) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 251661901 + ... + 251662217.

Almost surely, 2^79776872703 is an apocalyptic number.

79776872703 is a deficient number, since it is larger than the sum of its proper divisors (55449902673).

79776872703 is a wasteful number, since it uses less digits than its factorization.

With its successor (79776872704) it forms an eRAP, since the sums of their prime factors are consecutive (547 and 548).

79776872703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 43563744, while the sum is 63.

The spelling of 79776872703 in words is "seventy-nine billion, seven hundred seventy-six million, eight hundred seventy-two thousand, seven hundred three".