11957757392384 has 40 divisors (see below), whose sum is σ = 23964341881128. Its totient is φ = 5960815534080.

The previous prime is 11957757392381. The next prime is 11957757392411. The reversal of 11957757392384 is 48329375775911.

It is a super-2 number, since 2×11957757392384² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11957757392381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35109977 + ... + 35448920.

Almost surely, 2^{11957757392384} is an apocalyptic number.

It is an amenable number.

11957757392384 is an abundant number, since it is smaller than the sum of its proper divisors (12006584488744).

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

11957757392384 is an frugal number, since it uses more digits than its factorization.

11957757392384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70559246 (or 70559230 counting only the distinct ones).

The product of its digits is 400075200, while the sum is 71.

The spelling of 11957757392384 in words is "eleven trillion, nine hundred fifty-seven billion, seven hundred fifty-seven million, three hundred ninety-two thousand, three hundred eighty-four".