309483688438 has 8 divisors (see below), whose sum is σ = 464286710160. Its totient is φ = 154721451720.

The previous prime is 309483688417. The next prime is 309483688519. The reversal of 309483688438 is 834886384903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 309483688438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10177273 + ... + 10207636.

It is an arithmetic number, because the mean of its divisors is an integer number (58035838770).

Almost surely, 2^309483688438 is an apocalyptic number.

309483688438 is a deficient number, since it is larger than the sum of its proper divisors (154803021722).

309483688438 is a wasteful number, since it uses less digits than its factorization.

309483688438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20392502.

The product of its (nonzero) digits is 95551488, while the sum is 64.

The spelling of 309483688438 in words is "three hundred nine billion, four hundred eighty-three million, six hundred eighty-eight thousand, four hundred thirty-eight".