11280057280 has 28 divisors (see below), whose sum is σ = 26860637160. Its totient is φ = 4512022784.

The previous prime is 11280057253. The next prime is 11280057287. The reversal of 11280057280 is 8275008211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280057287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17624770 + ... + 17625409.

It is an arithmetic number, because the mean of its divisors is an integer number (959308470).

Almost surely, 2^11280057280 is an apocalyptic number.

11280057280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11280057280 is an abundant number, since it is smaller than the sum of its proper divisors (15580579880).

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

11280057280 is an equidigital number, since it uses as much as digits as its factorization.

11280057280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35250196 (or 35250186 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 11280057280 in words is "eleven billion, two hundred eighty million, fifty-seven thousand, two hundred eighty".