11791075538 has 32 divisors (see below), whose sum is σ = 19452977280. Its totient is φ = 5315708160.

The previous prime is 11791075523. The next prime is 11791075553. The reversal of 11791075538 is 83557019711.

11791075538 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11791075523) and next prime (11791075553).

It is a junction number, because it is equal to n+sod(n) for n = 11791075492 and 11791075501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667306 + ... + 1674362.

It is an arithmetic number, because the mean of its divisors is an integer number (607905540).

Almost surely, 2^11791075538 is an apocalyptic number.

11791075538 is a deficient number, since it is larger than the sum of its proper divisors (7661901742).

11791075538 is a wasteful number, since it uses less digits than its factorization.

11791075538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682.

The product of its (nonzero) digits is 264600, while the sum is 47.

The spelling of 11791075538 in words is "eleven billion, seven hundred ninety-one million, seventy-five thousand, five hundred thirty-eight".