11138557453 has 8 divisors (see below), whose sum is σ = 11432667960. Its totient is φ = 10845515520.

The previous prime is 11138557429. The next prime is 11138557499. The reversal of 11138557453 is 35475583111.

It can be written as a sum of positive squares in 4 ways, for example, as 62678889 + 11075878564 = 7917^2 + 105242^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11138557453 - 2²⁹ = 10601686541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138557153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246000 + ... + 287737.

It is an arithmetic number, because the mean of its divisors is an integer number (1429083495).

Almost surely, 2^11138557453 is an apocalyptic number.

It is an amenable number.

11138557453 is a deficient number, since it is larger than the sum of its proper divisors (294110507).

11138557453 is an equidigital number, since it uses as much as digits as its factorization.

11138557453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534287.

The product of its digits is 252000, while the sum is 43.

The spelling of 11138557453 in words is "eleven billion, one hundred thirty-eight million, five hundred fifty-seven thousand, four hundred fifty-three".