79846869451 has 8 divisors (see below), whose sum is σ = 80195950208. Its totient is φ = 79497936000.

The previous prime is 79846869449. The next prime is 79846869457. The reversal of 79846869451 is 15496864897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79846869451 - 2¹ = 79846869449 is a prime.

It is a super-2 number, since 2×79846869451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79846869457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129981 + ... + 1198561.

It is an arithmetic number, because the mean of its divisors is an integer number (10024493776).

Almost surely, 2^79846869451 is an apocalyptic number.

79846869451 is a deficient number, since it is larger than the sum of its proper divisors (349080757).

79846869451 is a wasteful number, since it uses less digits than its factorization.

79846869451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73653.

The product of its digits is 104509440, while the sum is 67.

The spelling of 79846869451 in words is "seventy-nine billion, eight hundred forty-six million, eight hundred sixty-nine thousand, four hundred fifty-one".