42950000641 has 2 divisors, whose sum is σ = 42950000642. Its totient is φ = 42950000640.

The previous prime is 42950000609. The next prime is 42950000689. The reversal of 42950000641 is 14600005924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42561753025 + 388247616 = 206305^2 + 19704^2 .

It is a cyclic number.

It is not a de Polignac number, because 42950000641 - 2⁵ = 42950000609 is a prime.

It is not a weakly prime, because it can be changed into another prime (42950040641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21475000320 + 21475000321.

It is an arithmetic number, because the mean of its divisors is an integer number (21475000321).

Almost surely, 2^42950000641 is an apocalyptic number.

42950000641 is the 131073-rd centered pentagonal number.

It is an amenable number.

42950000641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42950000641 is an equidigital number, since it uses as much as digits as its factorization.

42950000641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 42950000641 in words is "forty-two billion, nine hundred fifty million, six hundred forty-one", and thus it is an aban number.