79661468503 has 8 divisors (see below), whose sum is σ = 80282741616. Its totient is φ = 79040395200.

The previous prime is 79661468483. The next prime is 79661468543. The reversal of 79661468503 is 30586416697.

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 79661468503 - 2²⁵ = 79627914071 is a prime.

It is a super-2 number, since 2×79661468503² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79661468543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807625 + ... + 900877.

It is an arithmetic number, because the mean of its divisors is an integer number (10035342702).

Almost surely, 2^79661468503 is an apocalyptic number.

79661468503 is a deficient number, since it is larger than the sum of its proper divisors (621273113).

79661468503 is a wasteful number, since it uses less digits than its factorization.

79661468503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99905.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 79661468503 in words is "seventy-nine billion, six hundred sixty-one million, four hundred sixty-eight thousand, five hundred three".