42774317591 has 2 divisors, whose sum is σ = 42774317592. Its totient is φ = 42774317590.

The previous prime is 42774317557. The next prime is 42774317629. The reversal of 42774317591 is 19571347724.

42774317591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42774317591 - 2⁶ = 42774317527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42771317591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387158795 + 21387158796.

It is an arithmetic number, because the mean of its divisors is an integer number (21387158796).

Almost surely, 2^42774317591 is an apocalyptic number.

42774317591 is a deficient number, since it is larger than the sum of its proper divisors (1).

42774317591 is an equidigital number, since it uses as much as digits as its factorization.

42774317591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The spelling of 42774317591 in words is "forty-two billion, seven hundred seventy-four million, three hundred seventeen thousand, five hundred ninety-one".