42078333247 has 2 divisors, whose sum is σ = 42078333248. Its totient is φ = 42078333246.

The previous prime is 42078333239. The next prime is 42078333263. The reversal of 42078333247 is 74233387024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42078333247 - 2³ = 42078333239 is a prime.

It is a super-2 number, since 2×42078333247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42078330247) 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, 21039166623 + 21039166624.

It is an arithmetic number, because the mean of its divisors is an integer number (21039166624).

Almost surely, 2^42078333247 is an apocalyptic number.

42078333247 is a deficient number, since it is larger than the sum of its proper divisors (1).

42078333247 is an equidigital number, since it uses as much as digits as its factorization.

42078333247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 42078333247 in words is "forty-two billion, seventy-eight million, three hundred thirty-three thousand, two hundred forty-seven".