42950040641 has 2 divisors, whose sum is σ = 42950040642. Its totient is φ = 42950040640.

The previous prime is 42950040599. The next prime is 42950040649. The reversal of 42950040641 is 14604005924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42351993616 + 598047025 = 205796^2 + 24455^2 .

It is a cyclic number.

It is not a de Polignac number, because 42950040641 - 2⁶ = 42950040577 is a prime.

It is not a weakly prime, because it can be changed into another prime (42950040649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21475020320 + 21475020321.

It is an arithmetic number, because the mean of its divisors is an integer number (21475020321).

Almost surely, 2^42950040641 is an apocalyptic number.

It is an amenable number.

42950040641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42950040641 is an equidigital number, since it uses as much as digits as its factorization.

42950040641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 42950040641 in words is "forty-two billion, nine hundred fifty million, forty thousand, six hundred forty-one".