79794851461 has 16 divisors (see below), whose sum is σ = 87407688816. Its totient is φ = 72399591936.

The previous prime is 79794851453. The next prime is 79794851467. The reversal of 79794851461 is 16415849797.

It can be written as a sum of positive squares in 8 ways, for example, as 1789713025 + 78005138436 = 42305^2 + 279294^2 .

It is not a de Polignac number, because 79794851461 - 2³ = 79794851453 is a prime.

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 79794851461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79794851467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134571 + ... + 421543.

It is an arithmetic number, because the mean of its divisors is an integer number (5462980551).

Almost surely, 2^79794851461 is an apocalyptic number.

It is an amenable number.

79794851461 is a deficient number, since it is larger than the sum of its proper divisors (7612837355).

79794851461 is a wasteful number, since it uses less digits than its factorization.

79794851461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287352.

The product of its digits is 15240960, while the sum is 61.

The spelling of 79794851461 in words is "seventy-nine billion, seven hundred ninety-four million, eight hundred fifty-one thousand, four hundred sixty-one".