42042178567 has 2 divisors, whose sum is σ = 42042178568. Its totient is φ = 42042178566.

The previous prime is 42042178499. The next prime is 42042178603. The reversal of 42042178567 is 76587124024.

42042178567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42042178567 - 2¹⁵ = 42042145799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42042178667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21021089283 + 21021089284.

It is an arithmetic number, because the mean of its divisors is an integer number (21021089284).

Almost surely, 2^42042178567 is an apocalyptic number.

42042178567 is a deficient number, since it is larger than the sum of its proper divisors (1).

42042178567 is an equidigital number, since it uses as much as digits as its factorization.

42042178567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 42042178567 in words is "forty-two billion, forty-two million, one hundred seventy-eight thousand, five hundred sixty-seven".