11894647239 has 12 divisors (see below), whose sum is σ = 17256187000. Its totient is φ = 7895135664.

The previous prime is 11894647231. The next prime is 11894647241. The reversal of 11894647239 is 93274649811.

11894647239 is a `hidden beast` number, since 1 + 1 + 89 + 464 + 72 + 39 = 666.

It is not a de Polignac number, because 11894647239 - 2³ = 11894647231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11894647231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2883589 + ... + 2887710.

Almost surely, 2^11894647239 is an apocalyptic number.

11894647239 is a deficient number, since it is larger than the sum of its proper divisors (5361539761).

11894647239 is a wasteful number, since it uses less digits than its factorization.

11894647239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771534 (or 5771531 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 11894647239 in words is "eleven billion, eight hundred ninety-four million, six hundred forty-seven thousand, two hundred thirty-nine".