11515805942 has 8 divisors (see below), whose sum is σ = 17467795800. Its totient is φ = 5693207344.

The previous prime is 11515805929. The next prime is 11515805957. The reversal of 11515805942 is 24950851511.

11515805942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×11515805942² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11515805942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32347592 + ... + 32347947.

It is an arithmetic number, because the mean of its divisors is an integer number (2183474475).

Almost surely, 2^11515805942 is an apocalyptic number.

11515805942 is a deficient number, since it is larger than the sum of its proper divisors (5951989858).

11515805942 is an equidigital number, since it uses as much as digits as its factorization.

11515805942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64695630.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 11515805942 in words is "eleven billion, five hundred fifteen million, eight hundred five thousand, nine hundred forty-two".