11481511745 has 8 divisors (see below), whose sum is σ = 15030342720. Its totient is φ = 8350190320.

The previous prime is 11481511631. The next prime is 11481511763. The reversal of 11481511745 is 54711518411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11481511745 - 2²⁴ = 11464734529 is a prime.

It is a super-2 number, since 2×11481511745² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11481511699 and 11481511708.

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, 104377325 + ... + 104377434.

It is an arithmetic number, because the mean of its divisors is an integer number (1878792840).

Almost surely, 2^11481511745 is an apocalyptic number.

It is an amenable number.

11481511745 is a deficient number, since it is larger than the sum of its proper divisors (3548830975).

11481511745 is a wasteful number, since it uses less digits than its factorization.

11481511745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208754775.

The product of its digits is 22400, while the sum is 38.

The spelling of 11481511745 in words is "eleven billion, four hundred eighty-one million, five hundred eleven thousand, seven hundred forty-five".