765766620043 has 2 divisors, whose sum is σ = 765766620044. Its totient is φ = 765766620042.

The previous prime is 765766619983. The next prime is 765766620097. The reversal of 765766620043 is 340026667567.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-765766620043 is a prime.

It is not a weakly prime, because it can be changed into another prime (765766620343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382883310021 + 382883310022.

It is an arithmetic number, because the mean of its divisors is an integer number (382883310022).

Almost surely, 2^765766620043 is an apocalyptic number.

765766620043 is a deficient number, since it is larger than the sum of its proper divisors (1).

765766620043 is an equidigital number, since it uses as much as digits as its factorization.

765766620043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 765766620043 in words is "seven hundred sixty-five billion, seven hundred sixty-six million, six hundred twenty thousand, forty-three".