309235934605 has 32 divisors (see below), whose sum is σ = 417061161216. Its totient is φ = 218399791104.

The previous prime is 309235934563. The next prime is 309235934617. The reversal of 309235934605 is 506439532903.

It is a cyclic number.

It is not a de Polignac number, because 309235934605 - 2¹⁵ = 309235901837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20508349 + ... + 20523421.

It is an arithmetic number, because the mean of its divisors is an integer number (13033161288).

Almost surely, 2^309235934605 is an apocalyptic number.

It is an amenable number.

309235934605 is a deficient number, since it is larger than the sum of its proper divisors (107825226611).

309235934605 is a wasteful number, since it uses less digits than its factorization.

309235934605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28837.

The product of its (nonzero) digits is 2624400, while the sum is 49.

The spelling of 309235934605 in words is "three hundred nine billion, two hundred thirty-five million, nine hundred thirty-four thousand, six hundred five".