42770007697 has 2 divisors, whose sum is σ = 42770007698. Its totient is φ = 42770007696.

The previous prime is 42770007691. The next prime is 42770007701. The reversal of 42770007697 is 79670007724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34182093456 + 8587914241 = 184884^2 + 92671^2 .

It is a cyclic number.

It is not a de Polignac number, because 42770007697 - 2³ = 42770007689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42770007697.

It is not a weakly prime, because it can be changed into another prime (42770007691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21385003848 + 21385003849.

It is an arithmetic number, because the mean of its divisors is an integer number (21385003849).

Almost surely, 2^42770007697 is an apocalyptic number.

It is an amenable number.

42770007697 is a deficient number, since it is larger than the sum of its proper divisors (1).

42770007697 is an equidigital number, since it uses as much as digits as its factorization.

42770007697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 42770007697 in words is "forty-two billion, seven hundred seventy million, seven thousand, six hundred ninety-seven".