15470168728 has 64 divisors (see below), whose sum is σ = 33872256000. Its totient is φ = 6486410112.

The previous prime is 15470168711. The next prime is 15470168729. The reversal of 15470168728 is 82786107451.

It is a super-2 number, since 2×15470168728² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15470168729) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1058253 + ... + 1072771.

It is an arithmetic number, because the mean of its divisors is an integer number (529254000).

Almost surely, 2^15470168728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15470168728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16936128000).

15470168728 is an abundant number, since it is smaller than the sum of its proper divisors (18402087272).

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

15470168728 is a wasteful number, since it uses less digits than its factorization.

15470168728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14944 (or 14940 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 15470168728 in words is "fifteen billion, four hundred seventy million, one hundred sixty-eight thousand, seven hundred twenty-eight".