11375915994 has 16 divisors (see below), whose sum is σ = 25279813440. Its totient is φ = 3791971980.

The previous prime is 11375915987. The next prime is 11375916001. The reversal of 11375915994 is 49951957311.

11375915994 is a `hidden beast` number, since 11 + 37 + 5 + 9 + 1 + 599 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (11375915987) and next prime (11375916001).

It is a super-2 number, since 2×11375915994² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 210665111 = 11375915994 / (1 + 1 + 3 + 7 + 5 + 9 + 1 + 5 + 9 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 11375915994.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105332502 + ... + 105332609.

It is an arithmetic number, because the mean of its divisors is an integer number (1579988340).

Almost surely, 2^11375915994 is an apocalyptic number.

11375915994 is an abundant number, since it is smaller than the sum of its proper divisors (13903897446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11375915994 is a wasteful number, since it uses less digits than its factorization.

11375915994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210665122 (or 210665116 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 54.

It can be divided in two parts, 11375 and 915994, that added together give a square (927369 = 963²).

The spelling of 11375915994 in words is "eleven billion, three hundred seventy-five million, nine hundred fifteen thousand, nine hundred ninety-four".