11474781133451 has 16 divisors (see below), whose sum is σ = 12405414336000. Its totient is φ = 10576829298528.

The previous prime is 11474781133447. The next prime is 11474781133469. The reversal of 11474781133451 is 15433118747411.

It is a cyclic number.

It is not a de Polignac number, because 11474781133451 - 2² = 11474781133447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11474781133451.

It is not an unprimeable number, because it can be changed into a prime (11474781136451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43935950 + ... + 44196348.

It is an arithmetic number, because the mean of its divisors is an integer number (775338396000).

Almost surely, 2^{11474781133451} is an apocalyptic number.

11474781133451 is a deficient number, since it is larger than the sum of its proper divisors (930633202549).

11474781133451 is a wasteful number, since it uses less digits than its factorization.

11474781133451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323138.

The product of its digits is 1128960, while the sum is 50.

The spelling of 11474781133451 in words is "eleven trillion, four hundred seventy-four billion, seven hundred eighty-one million, one hundred thirty-three thousand, four hundred fifty-one".