30389857092 has 144 divisors (see below), whose sum is σ = 88780648320. Its totient is φ = 8585450496.

The previous prime is 30389857079. The next prime is 30389857111. The reversal of 30389857092 is 29075898303.

It is a happy number.

30389857092 is a `hidden beast` number, since 30 + 38 + 9 + 8 + 570 + 9 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27206118 + ... + 27207234.

It is an arithmetic number, because the mean of its divisors is an integer number (616532280).

Almost surely, 2^30389857092 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 30389857092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44390324160).

30389857092 is an abundant number, since it is smaller than the sum of its proper divisors (58390791228).

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

30389857092 is a wasteful number, since it uses less digits than its factorization.

30389857092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 30389857092 in words is "thirty billion, three hundred eighty-nine million, eight hundred fifty-seven thousand, ninety-two".