11504342551 has 16 divisors (see below), whose sum is σ = 12629403360. Its totient is φ = 10413786240.

The previous prime is 11504342539. The next prime is 11504342573. The reversal of 11504342551 is 15524340511.

It is a de Polignac number, because none of the positive numbers 2^k-11504342551 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 (11504342581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2222196 + ... + 2227366.

It is an arithmetic number, because the mean of its divisors is an integer number (789337710).

Almost surely, 2^11504342551 is an apocalyptic number.

11504342551 is a deficient number, since it is larger than the sum of its proper divisors (1125060809).

11504342551 is a wasteful number, since it uses less digits than its factorization.

11504342551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 11504342551 in words is "eleven billion, five hundred four million, three hundred forty-two thousand, five hundred fifty-one".