11173456728895 has 16 divisors (see below), whose sum is σ = 13423345546752. Its totient is φ = 8928639256320.

The previous prime is 11173456728871. The next prime is 11173456728911. The reversal of 11173456728895 is 59882765437111.

It is not a de Polignac number, because 11173456728895 - 2⁹ = 11173456728383 is a prime.

It is a super-2 number, since 2×11173456728895² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11173456728895.

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, 15933379 + ... + 16619851.

It is an arithmetic number, because the mean of its divisors is an integer number (838959096672).

Almost surely, 2^{11173456728895} is an apocalyptic number.

11173456728895 is a deficient number, since it is larger than the sum of its proper divisors (2249888817857).

11173456728895 is a wasteful number, since it uses less digits than its factorization.

11173456728895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690162.

The product of its digits is 101606400, while the sum is 67.

The spelling of 11173456728895 in words is "eleven trillion, one hundred seventy-three billion, four hundred fifty-six million, seven hundred twenty-eight thousand, eight hundred ninety-five".