11087324778509 has 8 divisors (see below), whose sum is σ = 12672476673408. Its totient is φ = 9502484972400.

The previous prime is 11087324778487. The next prime is 11087324778511. The reversal of 11087324778509 is 90587742378011.

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

It is a de Polignac number, because none of the positive numbers 2^k-11087324778509 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 (11087324778529) 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, 77946062 + ... + 78088175.

It is an arithmetic number, because the mean of its divisors is an integer number (1584059584176).

Almost surely, 2^{11087324778509} is an apocalyptic number.

It is an amenable number.

11087324778509 is a deficient number, since it is larger than the sum of its proper divisors (1585151894899).

11087324778509 is a wasteful number, since it uses less digits than its factorization.

11087324778509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156044395.

The product of its (nonzero) digits is 23708160, while the sum is 62.

The spelling of 11087324778509 in words is "eleven trillion, eighty-seven billion, three hundred twenty-four million, seven hundred seventy-eight thousand, five hundred nine".