42230444444491 has 2 divisors, whose sum is σ = 42230444444492. Its totient is φ = 42230444444490.

The previous prime is 42230444444443. The next prime is 42230444444519. The reversal of 42230444444491 is 19444444403224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42230444444491 - 2²¹ = 42230442347339 is a prime.

It is not a weakly prime, because it can be changed into another prime (42230444444191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21115222222245 + 21115222222246.

It is an arithmetic number, because the mean of its divisors is an integer number (21115222222246).

Almost surely, 2^{42230444444491} is an apocalyptic number.

42230444444491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42230444444491 is an equidigital number, since it uses as much as digits as its factorization.

42230444444491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7077888, while the sum is 49.

The spelling of 42230444444491 in words is "forty-two trillion, two hundred thirty billion, four hundred forty-four million, four hundred forty-four thousand, four hundred ninety-one".