309419539623 has 8 divisors (see below), whose sum is σ = 458399318000. Its totient is φ = 206279693064.

The previous prime is 309419539591. The next prime is 309419539631. The reversal of 309419539623 is 326935914903.

309419539623 is a `hidden beast` number, since 3 + 0 + 9 + 4 + 1 + 9 + 5 + 3 + 9 + 623 = 666.

309419539623 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 309419539623 - 2⁵ = 309419539591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 309419539623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309419539823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729991448 + ... + 5729991501.

It is an arithmetic number, because the mean of its divisors is an integer number (57299914750).

Almost surely, 2^309419539623 is an apocalyptic number.

309419539623 is a deficient number, since it is larger than the sum of its proper divisors (148979778377).

309419539623 is a wasteful number, since it uses less digits than its factorization.

309419539623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11459982958 (or 11459982952 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The spelling of 309419539623 in words is "three hundred nine billion, four hundred nineteen million, five hundred thirty-nine thousand, six hundred twenty-three".