11273752613 has 4 divisors (see below), whose sum is σ = 11385374028. Its totient is φ = 11162131200.

The previous prime is 11273752603. The next prime is 11273752663. The reversal of 11273752613 is 31625737211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9993401089 + 1280351524 = 99967^2 + 35782^2 .

It is a cyclic number.

It is not a de Polignac number, because 11273752613 - 2⁶ = 11273752549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11273752603) 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, 55810556 + ... + 55810757.

It is an arithmetic number, because the mean of its divisors is an integer number (2846343507).

Almost surely, 2^11273752613 is an apocalyptic number.

It is an amenable number.

11273752613 is a deficient number, since it is larger than the sum of its proper divisors (111621415).

11273752613 is a wasteful number, since it uses less digits than its factorization.

11273752613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111621414.

The product of its digits is 52920, while the sum is 38.

The spelling of 11273752613 in words is "eleven billion, two hundred seventy-three million, seven hundred fifty-two thousand, six hundred thirteen".