11641183878 has 32 divisors (see below), whose sum is σ = 23441052672. Its totient is φ = 3853980000.

The previous prime is 11641183847. The next prime is 11641183889. The reversal of 11641183878 is 87838114611.

It is a congruent 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, 1905028 + ... + 1911128.

It is an arithmetic number, because the mean of its divisors is an integer number (732532896).

Almost surely, 2^11641183878 is an apocalyptic number.

11641183878 is an abundant number, since it is smaller than the sum of its proper divisors (11799868794).

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

11641183878 is a wasteful number, since it uses less digits than its factorization.

11641183878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220.

The product of its digits is 258048, while the sum is 48.

The spelling of 11641183878 in words is "eleven billion, six hundred forty-one million, one hundred eighty-three thousand, eight hundred seventy-eight".