42622461857 has 2 divisors, whose sum is σ = 42622461858. Its totient is φ = 42622461856.

The previous prime is 42622461853. The next prime is 42622461887. The reversal of 42622461857 is 75816422624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22935285136 + 19687176721 = 151444^2 + 140311^2 .

It is a cyclic number.

It is not a de Polignac number, because 42622461857 - 2² = 42622461853 is a prime.

It is not a weakly prime, because it can be changed into another prime (42622461853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21311230928 + 21311230929.

It is an arithmetic number, because the mean of its divisors is an integer number (21311230929).

Almost surely, 2^42622461857 is an apocalyptic number.

It is an amenable number.

42622461857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42622461857 is an equidigital number, since it uses as much as digits as its factorization.

42622461857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The spelling of 42622461857 in words is "forty-two billion, six hundred twenty-two million, four hundred sixty-one thousand, eight hundred fifty-seven".