11731450015 has 16 divisors (see below), whose sum is σ = 14938086528. Its totient is φ = 8813984256.

The previous prime is 11731450009. The next prime is 11731450037. The reversal of 11731450015 is 51005413711.

It is a cyclic number.

It is not a de Polignac number, because 11731450015 - 2²⁷ = 11597232287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109692 + ... + 188401.

It is an arithmetic number, because the mean of its divisors is an integer number (933630408).

Almost surely, 2^11731450015 is an apocalyptic number.

11731450015 is a deficient number, since it is larger than the sum of its proper divisors (3206636513).

11731450015 is a wasteful number, since it uses less digits than its factorization.

11731450015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298578.

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 11731450015 its reverse (51005413711), we get a palindrome (62736863726).

The spelling of 11731450015 in words is "eleven billion, seven hundred thirty-one million, four hundred fifty thousand, fifteen".