42021056000087 has 2 divisors, whose sum is σ = 42021056000088. Its totient is φ = 42021056000086.

The previous prime is 42021056000071. The next prime is 42021056000111. The reversal of 42021056000087 is 78000065012024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42021056000087 - 2⁴ = 42021056000071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021056000387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010528000043 + 21010528000044.

It is an arithmetic number, because the mean of its divisors is an integer number (21010528000044).

Almost surely, 2^{42021056000087} is an apocalyptic number.

42021056000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021056000087 is an equidigital number, since it uses as much as digits as its factorization.

42021056000087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 42021056000087 in words is "forty-two trillion, twenty-one billion, fifty-six million, eighty-seven", and thus it is an aban number and an uban number.