309999999896 has 16 divisors (see below), whose sum is σ = 581293781640. Its totient is φ = 154988324800.

The previous prime is 309999999877. The next prime is 309999999899. The reversal of 309999999896 is 698999999903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309999999899) 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 3 ways as a sum of consecutive naturals, for example, 1346030 + ... + 1559421.

Almost surely, 2^309999999896 is an apocalyptic number.

It is an amenable number.

309999999896 is a deficient number, since it is larger than the sum of its proper divisors (271293781744).

309999999896 is a wasteful number, since it uses less digits than its factorization.

309999999896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918794 (or 2918790 counting only the distinct ones).

The product of its (nonzero) digits is 6198727824, while the sum is 89.

The spelling of 309999999896 in words is "three hundred nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-six".