42943698727 has 2 divisors, whose sum is σ = 42943698728. Its totient is φ = 42943698726.

The previous prime is 42943698703. The next prime is 42943698731. The reversal of 42943698727 is 72789634924.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42943698727 - 2³¹ = 40796215079 is a prime.

It is a super-2 number, since 2×42943698727² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42946698727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21471849363 + 21471849364.

It is an arithmetic number, because the mean of its divisors is an integer number (21471849364).

Almost surely, 2^42943698727 is an apocalyptic number.

42943698727 is a deficient number, since it is larger than the sum of its proper divisors (1).

42943698727 is an equidigital number, since it uses as much as digits as its factorization.

42943698727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36578304, while the sum is 61.

The spelling of 42943698727 in words is "forty-two billion, nine hundred forty-three million, six hundred ninety-eight thousand, seven hundred twenty-seven".