11505612342 has 64 divisors (see below), whose sum is σ = 27944400384. Its totient is φ = 3082959360.

The previous prime is 11505612323. The next prime is 11505612401. The reversal of 11505612342 is 24321650511.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 173592 + ... + 230532.

It is an arithmetic number, because the mean of its divisors is an integer number (436631256).

Almost surely, 2^11505612342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11505612342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13972200192).

11505612342 is an abundant number, since it is smaller than the sum of its proper divisors (16438788042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11505612342 is a wasteful number, since it uses less digits than its factorization.

11505612342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57253.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 11505612342 in words is "eleven billion, five hundred five million, six hundred twelve thousand, three hundred forty-two".