42784572313 has 6 divisors (see below), whose sum is σ = 49769808666. Its totient is φ = 36672490512.

The previous prime is 42784572289. The next prime is 42784572319. The reversal of 42784572313 is 31327548724.

42784572313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32930635024 + 9853937289 = 181468^2 + 99267^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42784572313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42784572319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 436577220 + ... + 436577317.

It is an arithmetic number, because the mean of its divisors is an integer number (8294968111).

Almost surely, 2^42784572313 is an apocalyptic number.

It is an amenable number.

42784572313 is a deficient number, since it is larger than the sum of its proper divisors (6985236353).

42784572313 is an equidigital number, since it uses as much as digits as its factorization.

42784572313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873154551 (or 873154544 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 46.

The spelling of 42784572313 in words is "forty-two billion, seven hundred eighty-four million, five hundred seventy-two thousand, three hundred thirteen".