11783955677840 has 40 divisors (see below), whose sum is σ = 28034852702208. Its totient is φ = 4603964077440.

The previous prime is 11783955677831. The next prime is 11783955677881. The reversal of 11783955677840 is 4877655938711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11783955677840² (a number of 27 digits) contains 22 as substring.

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, 1712780816 + ... + 1712787695.

Almost surely, 2^{11783955677840} is an apocalyptic number.

11783955677840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11783955677840 is an abundant number, since it is smaller than the sum of its proper divisors (16250897024368).

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

11783955677840 is a wasteful number, since it uses less digits than its factorization.

11783955677840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425568567 (or 3425568561 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 71.

The spelling of 11783955677840 in words is "eleven trillion, seven hundred eighty-three billion, nine hundred fifty-five million, six hundred seventy-seven thousand, eight hundred forty".