11459975499 has 168 divisors, whose sum is σ = 21052753920. Its totient is φ = 6209330400.

The previous prime is 11459975497. The next prime is 11459975543. The reversal of 11459975499 is 99457995411.

11459975499 is a `hidden beast` number, since 1 + 1 + 4 + 59 + 97 + 5 + 499 = 666.

It is not a de Polignac number, because 11459975499 - 2¹ = 11459975497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (11459975491) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 87480664 + ... + 87480794.

Almost surely, 2^11459975499 is an apocalyptic number.

11459975499 is a deficient number, since it is larger than the sum of its proper divisors (9592778421).

11459975499 is an equidigital number, since it uses as much as digits as its factorization.

11459975499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 251 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 63.

The spelling of 11459975499 in words is "eleven billion, four hundred fifty-nine million, nine hundred seventy-five thousand, four hundred ninety-nine".