764141866769 has 2 divisors, whose sum is σ = 764141866770. Its totient is φ = 764141866768.

The previous prime is 764141866699. The next prime is 764141866783. The reversal of 764141866769 is 967668141467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647078665744 + 117063201025 = 804412^2 + 342145^2 .

It is a cyclic number.

It is not a de Polignac number, because 764141866769 - 2¹⁶ = 764141801233 is a prime.

It is a super-2 number, since 2×764141866769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (764141868769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382070933384 + 382070933385.

It is an arithmetic number, because the mean of its divisors is an integer number (382070933385).

Almost surely, 2^764141866769 is an apocalyptic number.

It is an amenable number.

764141866769 is a deficient number, since it is larger than the sum of its proper divisors (1).

764141866769 is an equidigital number, since it uses as much as digits as its factorization.

764141866769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 65.

The spelling of 764141866769 in words is "seven hundred sixty-four billion, one hundred forty-one million, eight hundred sixty-six thousand, seven hundred sixty-nine".