309484259805 has 64 divisors (see below), whose sum is σ = 569053900800. Its totient is φ = 140695458816.

The previous prime is 309484259759. The next prime is 309484259813. The reversal of 309484259805 is 508952484903.

It is not a de Polignac number, because 309484259805 - 2⁷ = 309484259677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16366246 + ... + 16385144.

It is an arithmetic number, because the mean of its divisors is an integer number (8891467200).

Almost surely, 2^309484259805 is an apocalyptic number.

309484259805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

309484259805 is a deficient number, since it is larger than the sum of its proper divisors (259569640995).

309484259805 is a wasteful number, since it uses less digits than its factorization.

309484259805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19770.

The product of its (nonzero) digits is 12441600, while the sum is 57.

The spelling of 309484259805 in words is "three hundred nine billion, four hundred eighty-four million, two hundred fifty-nine thousand, eight hundred five".