42662140393 has 2 divisors, whose sum is σ = 42662140394. Its totient is φ = 42662140392.

The previous prime is 42662140363. The next prime is 42662140399. The reversal of 42662140393 is 39304126624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25749658089 + 16912482304 = 160467^2 + 130048^2 .

It is a cyclic number.

It is not a de Polignac number, because 42662140393 - 2¹⁷ = 42662009321 is a prime.

It is not a weakly prime, because it can be changed into another prime (42662140399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21331070196 + 21331070197.

It is an arithmetic number, because the mean of its divisors is an integer number (21331070197).

Almost surely, 2^42662140393 is an apocalyptic number.

It is an amenable number.

42662140393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42662140393 is an equidigital number, since it uses as much as digits as its factorization.

42662140393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 42662140393 in words is "forty-two billion, six hundred sixty-two million, one hundred forty thousand, three hundred ninety-three".