11372820880 has 40 divisors (see below), whose sum is σ = 27833486400. Its totient is φ = 4309699968.

The previous prime is 11372820857. The next prime is 11372820881. The reversal of 11372820880 is 8802827311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (11372820881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3739540 + ... + 3742579.

It is an arithmetic number, because the mean of its divisors is an integer number (695837160).

Almost surely, 2^11372820880 is an apocalyptic number.

11372820880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11372820880 is an abundant number, since it is smaller than the sum of its proper divisors (16460665520).

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

11372820880 is a wasteful number, since it uses less digits than its factorization.

11372820880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482151 (or 7482145 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 11372820880 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, eight hundred eighty".