42001550512 has 60 divisors (see below), whose sum is σ = 84728639520. Its totient is φ = 20146299264.

The previous prime is 42001550473. The next prime is 42001550527. The reversal of 42001550512 is 21505510024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12326313 + ... + 12329719.

It is an arithmetic number, because the mean of its divisors is an integer number (1412143992).

Almost surely, 2^42001550512 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 42001550512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42364319760).

42001550512 is an abundant number, since it is smaller than the sum of its proper divisors (42727089008).

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

42001550512 is a wasteful number, since it uses less digits than its factorization.

42001550512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 42001550512 in words is "forty-two billion, one million, five hundred fifty thousand, five hundred twelve".