42784634564 has 24 divisors (see below), whose sum is σ = 85924341888. Its totient is φ = 18260184960.

The previous prime is 42784634539. The next prime is 42784634567. The reversal of 42784634564 is 46543648724.

It is not an unprimeable number, because it can be changed into a prime (42784634567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3163424 + ... + 3176919.

It is an arithmetic number, because the mean of its divisors is an integer number (3580180912).

Almost surely, 2^42784634564 is an apocalyptic number.

It is an amenable number.

42784634564 is an abundant number, since it is smaller than the sum of its proper divisors (43139707324).

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

42784634564 is a wasteful number, since it uses less digits than its factorization.

42784634564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340595 (or 6340593 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 53.

The spelling of 42784634564 in words is "forty-two billion, seven hundred eighty-four million, six hundred thirty-four thousand, five hundred sixty-four".