42077257837 has 2 divisors, whose sum is σ = 42077257838. Its totient is φ = 42077257836.

The previous prime is 42077257687. The next prime is 42077257867. The reversal of 42077257837 is 73875277024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24028410121 + 18048847716 = 155011^2 + 134346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42077257837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42077257867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21038628918 + 21038628919.

It is an arithmetic number, because the mean of its divisors is an integer number (21038628919).

Almost surely, 2^42077257837 is an apocalyptic number.

It is an amenable number.

42077257837 is a deficient number, since it is larger than the sum of its proper divisors (1).

42077257837 is an equidigital number, since it uses as much as digits as its factorization.

42077257837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4609920, while the sum is 52.

The spelling of 42077257837 in words is "forty-two billion, seventy-seven million, two hundred fifty-seven thousand, eight hundred thirty-seven".