42595770643 has 2 divisors, whose sum is σ = 42595770644. Its totient is φ = 42595770642.

The previous prime is 42595770629. The next prime is 42595770647. The reversal of 42595770643 is 34607759524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42595770643 is a prime.

It is not a weakly prime, because it can be changed into another prime (42595770647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21297885321 + 21297885322.

It is an arithmetic number, because the mean of its divisors is an integer number (21297885322).

Almost surely, 2^42595770643 is an apocalyptic number.

42595770643 is a deficient number, since it is larger than the sum of its proper divisors (1).

42595770643 is an equidigital number, since it uses as much as digits as its factorization.

42595770643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 42595770643 in words is "forty-two billion, five hundred ninety-five million, seven hundred seventy thousand, six hundred forty-three".