13191394658 has 16 divisors (see below), whose sum is σ = 21311652096. Its totient is φ = 6087628560.

The previous prime is 13191394603. The next prime is 13191394663. The reversal of 13191394658 is 85649319131.

It is a super-2 number, since 2×13191394658² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247793 + ... + 296283.

It is an arithmetic number, because the mean of its divisors is an integer number (1331978256).

Almost surely, 2^13191394658 is an apocalyptic number.

13191394658 is a deficient number, since it is larger than the sum of its proper divisors (8120257438).

13191394658 is a wasteful number, since it uses less digits than its factorization.

13191394658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58969.

The product of its digits is 699840, while the sum is 50.

The spelling of 13191394658 in words is "thirteen billion, one hundred ninety-one million, three hundred ninety-four thousand, six hundred fifty-eight".