11873126385 has 48 divisors (see below), whose sum is σ = 20886465600. Its totient is φ = 6238726272.

The previous prime is 11873126371. The next prime is 11873126399. The reversal of 11873126385 is 58362137811.

It is a happy number.

11873126385 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 3 + 1 + 2 + 638 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (11873126371) and next prime (11873126399).

It is not a de Polignac number, because 11873126385 - 2²⁰ = 11872077809 is a prime.

It is a super-2 number, since 2×11873126385² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11873126385.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 871234 + ... + 884756.

It is an arithmetic number, because the mean of its divisors is an integer number (435134700).

Almost surely, 2^11873126385 is an apocalyptic number.

11873126385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11873126385 is a deficient number, since it is larger than the sum of its proper divisors (9013339215).

11873126385 is a wasteful number, since it uses less digits than its factorization.

11873126385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13822 (or 13819 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 11873126385 in words is "eleven billion, eight hundred seventy-three million, one hundred twenty-six thousand, three hundred eighty-five".