11671888374 has 64 divisors (see below), whose sum is σ = 26478351360. Its totient is φ = 3810240000.

The previous prime is 11671888279. The next prime is 11671888381. The reversal of 11671888374 is 47388817611.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 11671888374.

It is a congruent number.

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, 568854 + ... + 589014.

It is an arithmetic number, because the mean of its divisors is an integer number (413724240).

Almost surely, 2^11671888374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11671888374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13239175680).

11671888374 is an abundant number, since it is smaller than the sum of its proper divisors (14806462986).

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

11671888374 is a wasteful number, since it uses less digits than its factorization.

11671888374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394 (or 20388 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The spelling of 11671888374 in words is "eleven billion, six hundred seventy-one million, eight hundred eighty-eight thousand, three hundred seventy-four".