42292267921 has 2 divisors, whose sum is σ = 42292267922. Its totient is φ = 42292267920.

The previous prime is 42292267891. The next prime is 42292267933. The reversal of 42292267921 is 12976229224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27402167296 + 14890100625 = 165536^2 + 122025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42292267921 is a prime.

It is not a weakly prime, because it can be changed into another prime (42292267321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21146133960 + 21146133961.

It is an arithmetic number, because the mean of its divisors is an integer number (21146133961).

Almost surely, 2^42292267921 is an apocalyptic number.

It is an amenable number.

42292267921 is a deficient number, since it is larger than the sum of its proper divisors (1).

42292267921 is an equidigital number, since it uses as much as digits as its factorization.

42292267921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The spelling of 42292267921 in words is "forty-two billion, two hundred ninety-two million, two hundred sixty-seven thousand, nine hundred twenty-one".