42346625641 has 2 divisors, whose sum is σ = 42346625642. Its totient is φ = 42346625640.

The previous prime is 42346625639. The next prime is 42346625669. The reversal of 42346625641 is 14652664324.

42346625641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33992665641 + 8353960000 = 184371^2 + 91400^2 .

It is a cyclic number.

It is not a de Polignac number, because 42346625641 - 2¹ = 42346625639 is a prime.

Together with 42346625639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42346625681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21173312820 + 21173312821.

It is an arithmetic number, because the mean of its divisors is an integer number (21173312821).

Almost surely, 2^42346625641 is an apocalyptic number.

It is an amenable number.

42346625641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42346625641 is an equidigital number, since it uses as much as digits as its factorization.

42346625641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 43.

The spelling of 42346625641 in words is "forty-two billion, three hundred forty-six million, six hundred twenty-five thousand, six hundred forty-one".