11421144780 has 24 divisors (see below), whose sum is σ = 31979205552. Its totient is φ = 3045638592.

The previous prime is 11421144727. The next prime is 11421144781. The reversal of 11421144780 is 8744112411.

It is not an unprimeable number, because it can be changed into a prime (11421144781) 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, 95176147 + ... + 95176266.

It is an arithmetic number, because the mean of its divisors is an integer number (1332466898).

Almost surely, 2^11421144780 is an apocalyptic number.

11421144780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11421144780 is an abundant number, since it is smaller than the sum of its proper divisors (20558060772).

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

11421144780 is a wasteful number, since it uses less digits than its factorization.

11421144780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190352425 (or 190352423 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The spelling of 11421144780 in words is "eleven billion, four hundred twenty-one million, one hundred forty-four thousand, seven hundred eighty".