11032800780 has 48 divisors (see below), whose sum is σ = 30897193824. Its totient is φ = 2941570560.

The previous prime is 11032800739. The next prime is 11032800799. The reversal of 11032800780 is 8700823011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442240 + ... + 466520.

It is an arithmetic number, because the mean of its divisors is an integer number (643691538).

Almost surely, 2^11032800780 is an apocalyptic number.

11032800780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11032800780 is an abundant number, since it is smaller than the sum of its proper divisors (19864393044).

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

11032800780 is a wasteful number, since it uses less digits than its factorization.

11032800780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31866 (or 31864 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The spelling of 11032800780 in words is "eleven billion, thirty-two million, eight hundred thousand, seven hundred eighty".