42151728328 has 32 divisors (see below), whose sum is σ = 80158894200. Its totient is φ = 20776324608.

The previous prime is 42151728287. The next prime is 42151728329. The reversal of 42151728328 is 82382715124.

It can be written as a sum of positive squares in 4 ways, for example, as 40561154404 + 1590573924 = 201398^2 + 39882^2 .

It is not an unprimeable number, because it can be changed into a prime (42151728329) 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, 1167150 + ... + 1202722.

Almost surely, 2^42151728328 is an apocalyptic number.

It is an amenable number.

42151728328 is a deficient number, since it is larger than the sum of its proper divisors (38007165872).

42151728328 is a wasteful number, since it uses less digits than its factorization.

42151728328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37681 (or 37677 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The spelling of 42151728328 in words is "forty-two billion, one hundred fifty-one million, seven hundred twenty-eight thousand, three hundred twenty-eight".