11256388720742 has 32 divisors (see below), whose sum is σ = 20057580979200. Its totient is φ = 4680102218400.

The previous prime is 11256388720721. The next prime is 11256388720757. The reversal of 11256388720742 is 24702788365211.

It is a happy number.

It is a super-2 number, since 2×11256388720742² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464283734 + ... + 464307977.

It is an arithmetic number, because the mean of its divisors is an integer number (626799405600).

Almost surely, 2^{11256388720742} is an apocalyptic number.

11256388720742 is a deficient number, since it is larger than the sum of its proper divisors (8801192258458).

11256388720742 is a wasteful number, since it uses less digits than its factorization.

11256388720742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928591772.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 11256388720742 in words is "eleven trillion, two hundred fifty-six billion, three hundred eighty-eight million, seven hundred twenty thousand, seven hundred forty-two".