764443076449 has 16 divisors (see below), whose sum is σ = 850087243264. Its totient is φ = 682648560000.

The previous prime is 764443076443. The next prime is 764443076471. The reversal of 764443076449 is 944670344467.

It is a cyclic number.

It is not a de Polignac number, because 764443076449 - 2²¹ = 764440979297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764443076393 and 764443076402.

It is not an unprimeable number, because it can be changed into a prime (764443076443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893362 + ... + 1525444.

It is an arithmetic number, because the mean of its divisors is an integer number (53130452704).

Almost surely, 2^764443076449 is an apocalyptic number.

It is an amenable number.

764443076449 is a deficient number, since it is larger than the sum of its proper divisors (85644166815).

764443076449 is a wasteful number, since it uses less digits than its factorization.

764443076449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635128.

The product of its (nonzero) digits is 48771072, while the sum is 58.

The spelling of 764443076449 in words is "seven hundred sixty-four billion, four hundred forty-three million, seventy-six thousand, four hundred forty-nine".