42315009728 has 28 divisors (see below), whose sum is σ = 86016873432. Its totient is φ = 20641466880.

The previous prime is 42315009721. The next prime is 42315009739. The reversal of 42315009728 is 82790051324.

42315009728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (42315009721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8060450 + ... + 8065697.

It is an arithmetic number, because the mean of its divisors is an integer number (3072031194).

Almost surely, 2^42315009728 is an apocalyptic number.

It is an amenable number.

42315009728 is an abundant number, since it is smaller than the sum of its proper divisors (43701863704).

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

42315009728 is a wasteful number, since it uses less digits than its factorization.

42315009728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126200 (or 16126190 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 42315009728 in words is "forty-two billion, three hundred fifteen million, nine thousand, seven hundred twenty-eight".