8319809510464 has 21 divisors (see below), whose sum is σ = 16509667787431. Its totient is φ = 4159893217600.

The previous prime is 8319809510461. The next prime is 8319809510479. The reversal of 8319809510464 is 4640159089138.

The square root of 8319809510464 is 2884408.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8319809510399 and 8319809510408.

It is not an unprimeable number, because it can be changed into a prime (8319809510461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 22894989 + ... + 23255539.

Almost surely, 2^{8319809510464} is an apocalyptic number.

8319809510464 is the 2884408-th square number.

It is an amenable number.

8319809510464 is a deficient number, since it is larger than the sum of its proper divisors (8189858276967).

8319809510464 is an frugal number, since it uses more digits than its factorization.

8319809510464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721114 (or 360553 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 8319809510464 in words is "eight trillion, three hundred nineteen billion, eight hundred nine million, five hundred ten thousand, four hundred sixty-four".