42646780032 has 64 divisors (see below), whose sum is σ = 113698796160. Its totient is φ = 14163102720.

The previous prime is 42646779997. The next prime is 42646780039. The reversal of 42646780032 is 23008764624.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (42646780039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100843 + ... + 308970.

It is an arithmetic number, because the mean of its divisors is an integer number (1776543690).

Almost surely, 2^42646780032 is an apocalyptic number.

It is an amenable number.

42646780032 is an abundant number, since it is smaller than the sum of its proper divisors (71052016128).

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

42646780032 is a wasteful number, since it uses less digits than its factorization.

42646780032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410101 (or 410089 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 42646780032 in words is "forty-two billion, six hundred forty-six million, seven hundred eighty thousand, thirty-two".