13099435779 has 8 divisors (see below), whose sum is σ = 17466497872. Its totient is φ = 8732665440.

The previous prime is 13099435771. The next prime is 13099435819. The reversal of 13099435779 is 97753499031.

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

It is not a de Polignac number, because 13099435779 - 2³ = 13099435771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13099435771) 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, 74277 + ... + 178089.

It is an arithmetic number, because the mean of its divisors is an integer number (2183312234).

Almost surely, 2^13099435779 is an apocalyptic number.

13099435779 is a deficient number, since it is larger than the sum of its proper divisors (4367062093).

13099435779 is a wasteful number, since it uses less digits than its factorization.

13099435779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145877.

The product of its (nonzero) digits is 6429780, while the sum is 57.

It can be divided in two parts, 13099 and 435779, that added together give a triangular number (448878 = T₉₄₇).

The spelling of 13099435779 in words is "thirteen billion, ninety-nine million, four hundred thirty-five thousand, seven hundred seventy-nine".