42678286507 has 2 divisors, whose sum is σ = 42678286508. Its totient is φ = 42678286506.

The previous prime is 42678286493. The next prime is 42678286543. The reversal of 42678286507 is 70568287624.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42678286507 is a prime.

It is a super-2 number, since 2×42678286507² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42678283507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21339143253 + 21339143254.

It is an arithmetic number, because the mean of its divisors is an integer number (21339143254).

Almost surely, 2^42678286507 is an apocalyptic number.

42678286507 is a deficient number, since it is larger than the sum of its proper divisors (1).

42678286507 is an equidigital number, since it uses as much as digits as its factorization.

42678286507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 42678286507 in words is "forty-two billion, six hundred seventy-eight million, two hundred eighty-six thousand, five hundred seven".