30143595798 has 160 divisors (see below), whose sum is σ = 77713827840. Its totient is φ = 8669617920.

The previous prime is 30143595793. The next prime is 30143595821. The reversal of 30143595798 is 89759534103.

30143595798 is a `hidden beast` number, since 3 + 0 + 1 + 43 + 595 + 7 + 9 + 8 = 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 (30143595791) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1612815 + ... + 1631397.

It is an arithmetic number, because the mean of its divisors is an integer number (485711424).

Almost surely, 2^30143595798 is an apocalyptic number.

30143595798 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30143595798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38856913920).

30143595798 is an abundant number, since it is smaller than the sum of its proper divisors (47570232042).

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

30143595798 is a wasteful number, since it uses less digits than its factorization.

30143595798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18664 (or 18655 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 30143595798 in words is "thirty billion, one hundred forty-three million, five hundred ninety-five thousand, seven hundred ninety-eight".