11489477480 has 32 divisors (see below), whose sum is σ = 27839889000. Its totient is φ = 4242268416.

The previous prime is 11489477473. The next prime is 11489477497. The reversal of 11489477480 is 8477498411.

It can be written as a sum of positive squares in 4 ways, for example, as 10156205284 + 1333272196 = 100778^2 + 36514^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11047055 + ... + 11048094.

Almost surely, 2^11489477480 is an apocalyptic number.

11489477480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11489477480 is an abundant number, since it is smaller than the sum of its proper divisors (16350411520).

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

11489477480 is a wasteful number, since it uses less digits than its factorization.

11489477480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095173 (or 22095169 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 11489477480 in words is "eleven billion, four hundred eighty-nine million, four hundred seventy-seven thousand, four hundred eighty".