42204056291 has 2 divisors, whose sum is σ = 42204056292. Its totient is φ = 42204056290.

The previous prime is 42204056273. The next prime is 42204056317. The reversal of 42204056291 is 19265040224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42204056291 is a prime.

It is not a weakly prime, because it can be changed into another prime (42204056491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102028145 + 21102028146.

It is an arithmetic number, because the mean of its divisors is an integer number (21102028146).

Almost surely, 2^42204056291 is an apocalyptic number.

42204056291 is a deficient number, since it is larger than the sum of its proper divisors (1).

42204056291 is an equidigital number, since it uses as much as digits as its factorization.

42204056291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 42204056291 in words is "forty-two billion, two hundred four million, fifty-six thousand, two hundred ninety-one".