15148513728 has 70 divisors (see below), whose sum is σ = 44904955656. Its totient is φ = 5049502848.

The previous prime is 15148513727. The next prime is 15148513739. The reversal of 15148513728 is 82731584151.

15148513728 is a `hidden beast` number, since 1 + 514 + 85 + 1 + 37 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15148513727) 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 9 ways as a sum of consecutive naturals, for example, 1455900 + ... + 1466267.

Almost surely, 2^15148513728 is an apocalyptic number.

15148513728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15148513728 is an abundant number, since it is smaller than the sum of its proper divisors (29756441928).

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

15148513728 is an equidigital number, since it uses as much as digits as its factorization.

15148513728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922191 (or 2922172 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The spelling of 15148513728 in words is "fifteen billion, one hundred forty-eight million, five hundred thirteen thousand, seven hundred twenty-eight".