11945264613 has 16 divisors (see below), whose sum is σ = 16648659456. Its totient is φ = 7603904880.

The previous prime is 11945264587. The next prime is 11945264687. The reversal of 11945264613 is 31646254911.

It is a happy number.

It is not a de Polignac number, because 11945264613 - 2⁵ = 11945264581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945264113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112195 + ... + 190992.

It is an arithmetic number, because the mean of its divisors is an integer number (1040541216).

Almost surely, 2^11945264613 is an apocalyptic number.

It is an amenable number.

11945264613 is a deficient number, since it is larger than the sum of its proper divisors (4703394843).

11945264613 is a wasteful number, since it uses less digits than its factorization.

11945264613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303784.

The product of its digits is 155520, while the sum is 42.

The spelling of 11945264613 in words is "eleven billion, nine hundred forty-five million, two hundred sixty-four thousand, six hundred thirteen".