11987493759 has 12 divisors (see below), whose sum is σ = 17316619216. Its totient is φ = 7991039232.

The previous prime is 11987493703. The next prime is 11987493761. The reversal of 11987493759 is 95739478911.

11987493759 is a `hidden beast` number, since 1 + 1 + 98 + 7 + 493 + 7 + 59 = 666.

It is not a de Polignac number, because 11987493759 - 2⁹ = 11987493247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11987493696 and 11987493705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11987493559) 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, 90399 + ... + 179295.

Almost surely, 2^11987493759 is an apocalyptic number.

11987493759 is a deficient number, since it is larger than the sum of its proper divisors (5329125457).

11987493759 is a wasteful number, since it uses less digits than its factorization.

11987493759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103886 (or 103883 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 63.

The spelling of 11987493759 in words is "eleven billion, nine hundred eighty-seven million, four hundred ninety-three thousand, seven hundred fifty-nine".