11643876774 has 24 divisors (see below), whose sum is σ = 25267059792. Its totient is φ = 3875344560.

The previous prime is 11643876767. The next prime is 11643876779. The reversal of 11643876774 is 47767834611.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11643876774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643876779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483562 + ... + 507069.

It is an arithmetic number, because the mean of its divisors is an integer number (1052794158).

Almost surely, 2^11643876774 is an apocalyptic number.

11643876774 is an abundant number, since it is smaller than the sum of its proper divisors (13623183018).

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

11643876774 is a wasteful number, since it uses less digits than its factorization.

11643876774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991292 (or 991289 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The spelling of 11643876774 in words is "eleven billion, six hundred forty-three million, eight hundred seventy-six thousand, seven hundred seventy-four".