11867846578 has 64 divisors (see below), whose sum is σ = 21334855680. Its totient is φ = 4846197888.

The previous prime is 11867846563. The next prime is 11867846609. The reversal of 11867846578 is 87564876811.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4152526 + ... + 4155382.

It is an arithmetic number, because the mean of its divisors is an integer number (333357120).

Almost surely, 2^11867846578 is an apocalyptic number.

11867846578 is a deficient number, since it is larger than the sum of its proper divisors (9467009102).

11867846578 is a wasteful number, since it uses less digits than its factorization.

11867846578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079.

The product of its digits is 18063360, while the sum is 61.

The spelling of 11867846578 in words is "eleven billion, eight hundred sixty-seven million, eight hundred forty-six thousand, five hundred seventy-eight".