42213011878943 has 2 divisors, whose sum is σ = 42213011878944. Its totient is φ = 42213011878942.

The previous prime is 42213011878927. The next prime is 42213011879047. The reversal of 42213011878943 is 34987811031224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42213011878943 - 2⁴ = 42213011878927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42213011878913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21106505939471 + 21106505939472.

It is an arithmetic number, because the mean of its divisors is an integer number (21106505939472).

Almost surely, 2^{42213011878943} is an apocalyptic number.

42213011878943 is a deficient number, since it is larger than the sum of its proper divisors (1).

42213011878943 is an equidigital number, since it uses as much as digits as its factorization.

42213011878943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 42213011878943 in words is "forty-two trillion, two hundred thirteen billion, eleven million, eight hundred seventy-eight thousand, nine hundred forty-three".