42380397593 has 2 divisors, whose sum is σ = 42380397594. Its totient is φ = 42380397592.

The previous prime is 42380397581. The next prime is 42380397641. The reversal of 42380397593 is 39579308324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41670281689 + 710115904 = 204133^2 + 26648^2 .

It is a cyclic number.

It is not a de Polignac number, because 42380397593 - 2⁶ = 42380397529 is a prime.

It is not a weakly prime, because it can be changed into another prime (42380397523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21190198796 + 21190198797.

It is an arithmetic number, because the mean of its divisors is an integer number (21190198797).

Almost surely, 2^42380397593 is an apocalyptic number.

It is an amenable number.

42380397593 is a deficient number, since it is larger than the sum of its proper divisors (1).

42380397593 is an equidigital number, since it uses as much as digits as its factorization.

42380397593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 42380397593 in words is "forty-two billion, three hundred eighty million, three hundred ninety-seven thousand, five hundred ninety-three".