11515575272443 has 4 divisors (see below), whose sum is σ = 12562445751768. Its totient is φ = 10468704793120.

The previous prime is 11515575272441. The next prime is 11515575272507. The reversal of 11515575272443 is 34427257551511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11515575272443 - 2¹ = 11515575272441 is a prime.

It is a super-3 number, since 3×11515575272443³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11515575272441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523435239646 + ... + 523435239667.

It is an arithmetic number, because the mean of its divisors is an integer number (3140611437942).

Almost surely, 2^{11515575272443} is an apocalyptic number.

11515575272443 is a deficient number, since it is larger than the sum of its proper divisors (1046870479325).

11515575272443 is a wasteful number, since it uses less digits than its factorization.

11515575272443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046870479324.

The product of its digits is 5880000, while the sum is 52.

The spelling of 11515575272443 in words is "eleven trillion, five hundred fifteen billion, five hundred seventy-five million, two hundred seventy-two thousand, four hundred forty-three".