11715942891375 has 96 divisors (see below), whose sum is σ = 21418035724800. Its totient is φ = 6160379097600.

The previous prime is 11715942891287. The next prime is 11715942891377. The reversal of 11715942891375 is 57319824951711.

11715942891375 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 59 + 428 + 91 + 3 + 75 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-11715942891375 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11715942891377) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 209308642 + ... + 209364608.

It is an arithmetic number, because the mean of its divisors is an integer number (223104538800).

Almost surely, 2^{11715942891375} is an apocalyptic number.

11715942891375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11715942891375 is a deficient number, since it is larger than the sum of its proper divisors (9702092833425).

11715942891375 is a wasteful number, since it uses less digits than its factorization.

11715942891375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58610 (or 58597 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 63.

The spelling of 11715942891375 in words is "eleven trillion, seven hundred fifteen billion, nine hundred forty-two million, eight hundred ninety-one thousand, three hundred seventy-five".