42644446215143 has 2 divisors, whose sum is σ = 42644446215144. Its totient is φ = 42644446215142.

The previous prime is 42644446215101. The next prime is 42644446215187. The reversal of 42644446215143 is 34151264444624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42644446215143 - 2³² = 42640151247847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42644446215091 and 42644446215100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42644446212143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21322223107571 + 21322223107572.

It is an arithmetic number, because the mean of its divisors is an integer number (21322223107572).

Almost surely, 2^{42644446215143} is an apocalyptic number.

42644446215143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42644446215143 is an equidigital number, since it uses as much as digits as its factorization.

42644446215143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8847360, while the sum is 50.

The spelling of 42644446215143 in words is "forty-two trillion, six hundred forty-four billion, four hundred forty-six million, two hundred fifteen thousand, one hundred forty-three".