42204404659993 has 2 divisors, whose sum is σ = 42204404659994. Its totient is φ = 42204404659992.

The previous prime is 42204404659981. The next prime is 42204404660051. The reversal of 42204404659993 is 39995640440224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37607274155529 + 4597130504464 = 6132477^2 + 2144092^2 .

It is a cyclic number.

It is not a de Polignac number, because 42204404659993 - 2⁵ = 42204404659961 is a prime.

It is not a weakly prime, because it can be changed into another prime (42204404659913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102202329996 + 21102202329997.

It is an arithmetic number, because the mean of its divisors is an integer number (21102202329997).

Almost surely, 2^{42204404659993} is an apocalyptic number.

It is an amenable number.

42204404659993 is a deficient number, since it is larger than the sum of its proper divisors (1).

42204404659993 is an equidigital number, since it uses as much as digits as its factorization.

42204404659993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 42204404659993 in words is "forty-two trillion, two hundred four billion, four hundred four million, six hundred fifty-nine thousand, nine hundred ninety-three".