642733700341 has 2 divisors, whose sum is σ = 642733700342. Its totient is φ = 642733700340.

The previous prime is 642733700327. The next prime is 642733700387. The reversal of 642733700341 is 143007337246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622663028100 + 20070672241 = 789090^2 + 141671^2 .

It is a cyclic number.

It is not a de Polignac number, because 642733700341 - 2⁵ = 642733700309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 642733700294 and 642733700303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (642733701341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321366850170 + 321366850171.

It is an arithmetic number, because the mean of its divisors is an integer number (321366850171).

Almost surely, 2^642733700341 is an apocalyptic number.

It is an amenable number.

642733700341 is a deficient number, since it is larger than the sum of its proper divisors (1).

642733700341 is an equidigital number, since it uses as much as digits as its factorization.

642733700341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 642733700341 in words is "six hundred forty-two billion, seven hundred thirty-three million, seven hundred thousand, three hundred forty-one".