309849696350 has 24 divisors (see below), whose sum is σ = 579216536400. Its totient is φ = 123317061120.

The previous prime is 309849696349. The next prime is 309849696353. The reversal of 309849696350 is 53696948903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309849696353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15560387 + ... + 15580286.

It is an arithmetic number, because the mean of its divisors is an integer number (24134022350).

Almost surely, 2^309849696350 is an apocalyptic number.

309849696350 is a deficient number, since it is larger than the sum of its proper divisors (269366840050).

309849696350 is a wasteful number, since it uses less digits than its factorization.

309849696350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140884 (or 31140879 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 309849696350 in words is "three hundred nine billion, eight hundred forty-nine million, six hundred ninety-six thousand, three hundred fifty".