42162054827 has 2 divisors, whose sum is σ = 42162054828. Its totient is φ = 42162054826.

The previous prime is 42162054799. The next prime is 42162054833. The reversal of 42162054827 is 72845026124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42162054827 - 2²⁴ = 42145277611 is a prime.

It is not a weakly prime, because it can be changed into another prime (42162654827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21081027413 + 21081027414.

It is an arithmetic number, because the mean of its divisors is an integer number (21081027414).

Almost surely, 2^42162054827 is an apocalyptic number.

42162054827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42162054827 is an equidigital number, since it uses as much as digits as its factorization.

42162054827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 42162054827 in words is "forty-two billion, one hundred sixty-two million, fifty-four thousand, eight hundred twenty-seven".