43930640363 has 2 divisors, whose sum is σ = 43930640364. Its totient is φ = 43930640362.

The previous prime is 43930640339. The next prime is 43930640381. The reversal of 43930640363 is 36304603934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43930640363 - 2²² = 43926446059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43930640363.

It is not a weakly prime, because it can be changed into another prime (43930649363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21965320181 + 21965320182.

It is an arithmetic number, because the mean of its divisors is an integer number (21965320182).

Almost surely, 2^43930640363 is an apocalyptic number.

43930640363 is a deficient number, since it is larger than the sum of its proper divisors (1).

43930640363 is an equidigital number, since it uses as much as digits as its factorization.

43930640363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 41.

The spelling of 43930640363 in words is "forty-three billion, nine hundred thirty million, six hundred forty thousand, three hundred sixty-three".