8309439989746 has 24 divisors (see below), whose sum is σ = 14508181446876. Its totient is φ = 3558964147200.

The previous prime is 8309439989717. The next prime is 8309439989759. The reversal of 8309439989746 is 6479899349038.

It can be written as a sum of positive squares in 2 ways, for example, as 7886049020521 + 423390969225 = 2808211^2 + 650685^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26323491 + ... + 26637286.

Almost surely, 2^{8309439989746} is an apocalyptic number.

8309439989746 is a deficient number, since it is larger than the sum of its proper divisors (6198741457130).

8309439989746 is a wasteful number, since it uses less digits than its factorization.

8309439989746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52962394 (or 52962387 counting only the distinct ones).

The product of its (nonzero) digits is 2539579392, while the sum is 79.

The spelling of 8309439989746 in words is "eight trillion, three hundred nine billion, four hundred thirty-nine million, nine hundred eighty-nine thousand, seven hundred forty-six".