30843346128 has 160 divisors (see below), whose sum is σ = 91677560832. Its totient is φ = 8753011200.

The previous prime is 30843346123. The next prime is 30843346153. The reversal of 30843346128 is 82164334803.

It is a super-2 number, since 2×30843346128² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 30843346128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30843346123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54016083 + ... + 54016653.

Almost surely, 2^30843346128 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 30843346128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45838780416).

30843346128 is an abundant number, since it is smaller than the sum of its proper divisors (60834214704).

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

30843346128 is a wasteful number, since it uses less digits than its factorization.

30843346128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 30843346128 in words is "thirty billion, eight hundred forty-three million, three hundred forty-six thousand, one hundred twenty-eight".