11256649494 has 16 divisors (see below), whose sum is σ = 22821701232. Its totient is φ = 3700816128.

The previous prime is 11256649487. The next prime is 11256649511. The reversal of 11256649494 is 49494665211.

It is a happy number.

It is a congruent number.

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, 12849619 + ... + 12850494.

It is an arithmetic number, because the mean of its divisors is an integer number (1426356327).

Almost surely, 2^11256649494 is an apocalyptic number.

11256649494 is an abundant number, since it is smaller than the sum of its proper divisors (11565051738).

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

11256649494 is a wasteful number, since it uses less digits than its factorization.

11256649494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25700191.

The product of its digits is 1866240, while the sum is 51.

The spelling of 11256649494 in words is "eleven billion, two hundred fifty-six million, six hundred forty-nine thousand, four hundred ninety-four".