42774251959 has 2 divisors, whose sum is σ = 42774251960. Its totient is φ = 42774251958.

The previous prime is 42774251881. The next prime is 42774251981. The reversal of 42774251959 is 95915247724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42774251959 - 2⁷ = 42774251831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42774251659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387125979 + 21387125980.

It is an arithmetic number, because the mean of its divisors is an integer number (21387125980).

Almost surely, 2^42774251959 is an apocalyptic number.

42774251959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42774251959 is an equidigital number, since it uses as much as digits as its factorization.

42774251959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 55.

The spelling of 42774251959 in words is "forty-two billion, seven hundred seventy-four million, two hundred fifty-one thousand, nine hundred fifty-nine".