42206862493 has 2 divisors, whose sum is σ = 42206862494. Its totient is φ = 42206862492.

The previous prime is 42206862491. The next prime is 42206862539. The reversal of 42206862493 is 39426860224.

It is an a-pointer prime, because the next prime (42206862539) can be obtained adding 42206862493 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30368987289 + 11837875204 = 174267^2 + 108802^2 .

It is a cyclic number.

It is not a de Polignac number, because 42206862493 - 2¹ = 42206862491 is a prime.

Together with 42206862491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42206862491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21103431246 + 21103431247.

It is an arithmetic number, because the mean of its divisors is an integer number (21103431247).

Almost surely, 2^42206862493 is an apocalyptic number.

It is an amenable number.

42206862493 is a deficient number, since it is larger than the sum of its proper divisors (1).

42206862493 is an equidigital number, since it uses as much as digits as its factorization.

42206862493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 42206862493 in words is "forty-two billion, two hundred six million, eight hundred sixty-two thousand, four hundred ninety-three".