11291581894285 has 32 divisors (see below), whose sum is σ = 17438327414784. Its totient is φ = 6811846632000.

The previous prime is 11291581894279. The next prime is 11291581894319. The reversal of 11291581894285 is 58249818519211.

It is not a de Polignac number, because 11291581894285 - 2³ = 11291581894277 is a prime.

It is a super-2 number, since 2×11291581894285² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473032971 + ... + 473056840.

It is an arithmetic number, because the mean of its divisors is an integer number (544947731712).

Almost surely, 2^{11291581894285} is an apocalyptic number.

It is an amenable number.

11291581894285 is a deficient number, since it is larger than the sum of its proper divisors (6146745520499).

11291581894285 is a wasteful number, since it uses less digits than its factorization.

11291581894285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946089865.

The product of its digits is 16588800, while the sum is 64.

The spelling of 11291581894285 in words is "eleven trillion, two hundred ninety-one billion, five hundred eighty-one million, eight hundred ninety-four thousand, two hundred eighty-five".