11478870720 has 112 divisors (see below), whose sum is σ = 40494935520. Its totient is φ = 3061029888.

The previous prime is 11478870707. The next prime is 11478870721. The reversal of 11478870720 is 2707887411.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11478870721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655647 + ... + 672926.

Almost surely, 2^11478870720 is an apocalyptic number.

11478870720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11478870720 is an abundant number, since it is smaller than the sum of its proper divisors (29016064800).

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

11478870720 is a wasteful number, since it uses less digits than its factorization.

11478870720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328599 (or 1328583 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 45.

The spelling of 11478870720 in words is "eleven billion, four hundred seventy-eight million, eight hundred seventy thousand, seven hundred twenty".