309789703468 has 24 divisors (see below), whose sum is σ = 619610292000. Its totient is φ = 132760397568.

The previous prime is 309789703453. The next prime is 309789703477. The reversal of 309789703468 is 864307987903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318438 + ... + 849106.

It is an arithmetic number, because the mean of its divisors is an integer number (25817095500).

Almost surely, 2^309789703468 is an apocalyptic number.

It is an amenable number.

309789703468 is an abundant number, since it is smaller than the sum of its proper divisors (309820588532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

309789703468 is a wasteful number, since it uses less digits than its factorization.

309789703468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551529 (or 551527 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 309789703468 in words is "three hundred nine billion, seven hundred eighty-nine million, seven hundred three thousand, four hundred sixty-eight".