42183263261 has 2 divisors, whose sum is σ = 42183263262. Its totient is φ = 42183263260.

The previous prime is 42183263219. The next prime is 42183263279. The reversal of 42183263261 is 16236238124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38414040025 + 3769223236 = 195995^2 + 61394^2 .

It is a cyclic number.

It is not a de Polignac number, because 42183263261 - 2⁶ = 42183263197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42183263281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21091631630 + 21091631631.

It is an arithmetic number, because the mean of its divisors is an integer number (21091631631).

Almost surely, 2^42183263261 is an apocalyptic number.

It is an amenable number.

42183263261 is a deficient number, since it is larger than the sum of its proper divisors (1).

42183263261 is an equidigital number, since it uses as much as digits as its factorization.

42183263261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The spelling of 42183263261 in words is "forty-two billion, one hundred eighty-three million, two hundred sixty-three thousand, two hundred sixty-one".