15071629728 has 48 divisors (see below), whose sum is σ = 40632308640. Its totient is φ = 4888094976.

The previous prime is 15071629723. The next prime is 15071629739. The reversal of 15071629728 is 82792617051.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (15071629723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118018 + ... + 2125121.

It is an arithmetic number, because the mean of its divisors is an integer number (846506430).

Almost surely, 2^15071629728 is an apocalyptic number.

It is an amenable number.

15071629728 is an abundant number, since it is smaller than the sum of its proper divisors (25560678912).

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

15071629728 is a wasteful number, since it uses less digits than its factorization.

15071629728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243189 (or 4243181 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 15071629728 in words is "fifteen billion, seventy-one million, six hundred twenty-nine thousand, seven hundred twenty-eight".