11774542180 has 24 divisors (see below), whose sum is σ = 24750109440. Its totient is φ = 4705327200.

The previous prime is 11774542147. The next prime is 11774542181. The reversal of 11774542180 is 8124547711.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11774542181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259060 + ... + 301099.

It is an arithmetic number, because the mean of its divisors is an integer number (1031254560).

Almost surely, 2^11774542180 is an apocalyptic number.

11774542180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11774542180 is an abundant number, since it is smaller than the sum of its proper divisors (12975567260).

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

11774542180 is a wasteful number, since it uses less digits than its factorization.

11774542180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561219 (or 561217 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The spelling of 11774542180 in words is "eleven billion, seven hundred seventy-four million, five hundred forty-two thousand, one hundred eighty".