15241478464 has 28 divisors (see below), whose sum is σ = 30284649108. Its totient is φ = 7610700800.

The previous prime is 15241478449. The next prime is 15241478509. The reversal of 15241478464 is 46487414251.

It can be written as a sum of positive squares in 2 ways, for example, as 3316838464 + 11924640000 = 57592^2 + 109200^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107767 + ... + 205174.

It is an arithmetic number, because the mean of its divisors is an integer number (1081594611).

Almost surely, 2^15241478464 is an apocalyptic number.

It is an amenable number.

15241478464 is a deficient number, since it is larger than the sum of its proper divisors (15043170644).

15241478464 is an equidigital number, since it uses as much as digits as its factorization.

15241478464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313714 (or 313704 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The spelling of 15241478464 in words is "fifteen billion, two hundred forty-one million, four hundred seventy-eight thousand, four hundred sixty-four".