42724800779 has 2 divisors, whose sum is σ = 42724800780. Its totient is φ = 42724800778.

The previous prime is 42724800761. The next prime is 42724800791. The reversal of 42724800779 is 97700842724.

42724800779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42724800779 - 2³² = 38429833483 is a prime.

It is not a weakly prime, because it can be changed into another prime (42724800799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21362400389 + 21362400390.

It is an arithmetic number, because the mean of its divisors is an integer number (21362400390).

Almost surely, 2^42724800779 is an apocalyptic number.

42724800779 is a deficient number, since it is larger than the sum of its proper divisors (1).

42724800779 is an equidigital number, since it uses as much as digits as its factorization.

42724800779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 42724800779 in words is "forty-two billion, seven hundred twenty-four million, eight hundred thousand, seven hundred seventy-nine".