79661463803 has 16 divisors (see below), whose sum is σ = 85510650240. Its totient is φ = 73945783296.

The previous prime is 79661463773. The next prime is 79661463839. The reversal of 79661463803 is 30836416697.

It is a cyclic number.

It is not a de Polignac number, because 79661463803 - 2¹⁰ = 79661462779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79661463403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534350 + ... + 666972.

It is an arithmetic number, because the mean of its divisors is an integer number (5344415640).

Almost surely, 2^79661463803 is an apocalyptic number.

79661463803 is a deficient number, since it is larger than the sum of its proper divisors (5849186437).

79661463803 is a wasteful number, since it uses less digits than its factorization.

79661463803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133126.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 79661463803 in words is "seventy-nine billion, six hundred sixty-one million, four hundred sixty-three thousand, eight hundred three".