11582792509 has 4 divisors (see below), whose sum is σ = 11583043200. Its totient is φ = 11582541820.

The previous prime is 11582792489. The next prime is 11582792527. The reversal of 11582792509 is 90529728511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11582792509 - 2⁷ = 11582792381 is a prime.

It is a super-2 number, since 2×11582792509² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11582792209) 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, 33709 + ... + 155890.

It is an arithmetic number, because the mean of its divisors is an integer number (2895760800).

Almost surely, 2^11582792509 is an apocalyptic number.

It is an amenable number.

11582792509 is a deficient number, since it is larger than the sum of its proper divisors (250691).

11582792509 is an equidigital number, since it uses as much as digits as its factorization.

11582792509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250690.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 11582792509 in words is "eleven billion, five hundred eighty-two million, seven hundred ninety-two thousand, five hundred nine".