42150728628 has 36 divisors (see below), whose sum is σ = 107314217920. Its totient is φ = 13949160336.

The previous prime is 42150728623. The next prime is 42150728663. The reversal of 42150728628 is 82682705124.

42150728628 is a `hidden beast` number, since 4 + 2 + 15 + 0 + 7 + 2 + 8 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42150728623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4206700 + ... + 4216707.

Almost surely, 2^42150728628 is an apocalyptic number.

It is an amenable number.

42150728628 is an abundant number, since it is smaller than the sum of its proper divisors (65163489292).

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

42150728628 is a wasteful number, since it uses less digits than its factorization.

42150728628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423556 (or 8423551 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 42150728628 in words is "forty-two billion, one hundred fifty million, seven hundred twenty-eight thousand, six hundred twenty-eight".