309482729493 has 16 divisors (see below), whose sum is σ = 478234884096. Its totient is φ = 174356466480.

The previous prime is 309482729489. The next prime is 309482729513. The reversal of 309482729493 is 394927284903.

It is not a de Polignac number, because 309482729493 - 2² = 309482729489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309482729473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103782121 + ... + 103785102.

It is an arithmetic number, because the mean of its divisors is an integer number (29889680256).

Almost surely, 2^309482729493 is an apocalyptic number.

It is an amenable number.

309482729493 is a deficient number, since it is larger than the sum of its proper divisors (168752154603).

309482729493 is a wasteful number, since it uses less digits than its factorization.

309482729493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207567304.

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 309482729493 in words is "three hundred nine billion, four hundred eighty-two million, seven hundred twenty-nine thousand, four hundred ninety-three".