42501315827 has 2 divisors, whose sum is σ = 42501315828. Its totient is φ = 42501315826.

The previous prime is 42501315809. The next prime is 42501315833. The reversal of 42501315827 is 72851310524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42501315827 - 2¹⁰ = 42501314803 is a prime.

It is not a weakly prime, because it can be changed into another prime (42501315127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250657913 + 21250657914.

It is an arithmetic number, because the mean of its divisors is an integer number (21250657914).

Almost surely, 2^42501315827 is an apocalyptic number.

42501315827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42501315827 is an equidigital number, since it uses as much as digits as its factorization.

42501315827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 42501315827 in words is "forty-two billion, five hundred one million, three hundred fifteen thousand, eight hundred twenty-seven".