11209078464 has 28 divisors (see below), whose sum is σ = 29657353944. Its totient is φ = 3736359424.

The previous prime is 11209078427. The next prime is 11209078471. The reversal of 11209078464 is 46487090211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29190117 + ... + 29190500.

Almost surely, 2^11209078464 is an apocalyptic number.

It is an amenable number.

11209078464 is an abundant number, since it is smaller than the sum of its proper divisors (18448275480).

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

11209078464 is an equidigital number, since it uses as much as digits as its factorization.

11209078464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58380632 (or 58380622 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 11209078464 in words is "eleven billion, two hundred nine million, seventy-eight thousand, four hundred sixty-four".