79112511461 has 4 divisors (see below), whose sum is σ = 79134819072. Its totient is φ = 79090203852.

The previous prime is 79112511433. The next prime is 79112511463. The reversal of 79112511461 is 16411521197.

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 79112511461 - 2¹⁸ = 79112249317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79112511463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11148485 + ... + 11155578.

It is an arithmetic number, because the mean of its divisors is an integer number (19783704768).

Almost surely, 2^79112511461 is an apocalyptic number.

It is an amenable number.

79112511461 is a deficient number, since it is larger than the sum of its proper divisors (22307611).

79112511461 is a wasteful number, since it uses less digits than its factorization.

79112511461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307610.

The product of its digits is 15120, while the sum is 38.

The spelling of 79112511461 in words is "seventy-nine billion, one hundred twelve million, five hundred eleven thousand, four hundred sixty-one".