42563778732 has 36 divisors (see below), whose sum is σ = 111301837920. Its totient is φ = 13698687072.

The previous prime is 42563778731. The next prime is 42563778737. The reversal of 42563778732 is 23787736524.

42563778732 is a `hidden beast` number, since 4 + 2 + 563 + 7 + 7 + 8 + 73 + 2 = 666.

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

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42563778731) 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, 20383908 + ... + 20385995.

It is an arithmetic number, because the mean of its divisors is an integer number (3091717720).

Almost surely, 2^42563778732 is an apocalyptic number.

It is an amenable number.

42563778732 is an abundant number, since it is smaller than the sum of its proper divisors (68738059188).

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

42563778732 is a wasteful number, since it uses less digits than its factorization.

42563778732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40769942 (or 40769937 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 42563778732 in words is "forty-two billion, five hundred sixty-three million, seven hundred seventy-eight thousand, seven hundred thirty-two".