11757178385 has 16 divisors (see below), whose sum is σ = 14181073920. Its totient is φ = 9357512640.

The previous prime is 11757178373. The next prime is 11757178417. The reversal of 11757178385 is 58387175711.

It is not a de Polignac number, because 11757178385 - 2²⁰ = 11756129809 is a prime.

It is a super-2 number, since 2×11757178385² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 1445480 + ... + 1453590.

It is an arithmetic number, because the mean of its divisors is an integer number (886317120).

Almost surely, 2^11757178385 is an apocalyptic number.

It is an amenable number.

11757178385 is a deficient number, since it is larger than the sum of its proper divisors (2423895535).

11757178385 is a wasteful number, since it uses less digits than its factorization.

11757178385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9568.

The product of its digits is 1646400, while the sum is 53.

The spelling of 11757178385 in words is "eleven billion, seven hundred fifty-seven million, one hundred seventy-eight thousand, three hundred eighty-five".