15138146128 has 40 divisors (see below), whose sum is σ = 35491960512. Its totient is φ = 6106142208.

The previous prime is 15138146123. The next prime is 15138146159. The reversal of 15138146128 is 82164183151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15138146123) 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, 3973450 + ... + 3977257.

Almost surely, 2^15138146128 is an apocalyptic number.

It is an amenable number.

15138146128 is an abundant number, since it is smaller than the sum of its proper divisors (20353814384).

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

15138146128 is a wasteful number, since it uses less digits than its factorization.

15138146128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950739 (or 7950733 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The spelling of 15138146128 in words is "fifteen billion, one hundred thirty-eight million, one hundred forty-six thousand, one hundred twenty-eight".