11894522613 has 8 divisors (see below), whose sum is σ = 15947964000. Its totient is φ = 7885381488.

The previous prime is 11894522609. The next prime is 11894522659. The reversal of 11894522613 is 31622549811.

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

It is not a de Polignac number, because 11894522613 - 2² = 11894522609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11894522113) 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, 11074438 + ... + 11075511.

It is an arithmetic number, because the mean of its divisors is an integer number (1993495500).

Almost surely, 2^11894522613 is an apocalyptic number.

It is an amenable number.

11894522613 is a deficient number, since it is larger than the sum of its proper divisors (4053441387).

11894522613 is a wasteful number, since it uses less digits than its factorization.

11894522613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22150131.

The product of its digits is 103680, while the sum is 42.

The spelling of 11894522613 in words is "eleven billion, eight hundred ninety-four million, five hundred twenty-two thousand, six hundred thirteen".