309419683452 has 120 divisors (see below), whose sum is σ = 882679163520. Its totient is φ = 93735908640.

The previous prime is 309419683451. The next prime is 309419683459. The reversal of 309419683452 is 254386914903.

309419683452 is a `hidden beast` number, since 30 + 94 + 19 + 68 + 3 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309419683451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14341449 + ... + 14363007.

It is an arithmetic number, because the mean of its divisors is an integer number (7355659696).

Almost surely, 2^309419683452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309419683452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441339581760).

309419683452 is an abundant number, since it is smaller than the sum of its proper divisors (573259480068).

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

309419683452 is a wasteful number, since it uses less digits than its factorization.

309419683452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25613 (or 25602 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 309419683452 in words is "three hundred nine billion, four hundred nineteen million, six hundred eighty-three thousand, four hundred fifty-two".