30851290320 has 160 divisors (see below), whose sum is σ = 96842801664. Its totient is φ = 8123904000.

The previous prime is 30851290259. The next prime is 30851290321. The reversal of 30851290320 is 2309215803.

It is a super-2 number, since 2×30851290320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30851290321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10445964 + ... + 10448916.

Almost surely, 2^30851290320 is an apocalyptic number.

30851290320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30851290320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48421400832).

30851290320 is an abundant number, since it is smaller than the sum of its proper divisors (65991511344).

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

30851290320 is a wasteful number, since it uses less digits than its factorization.

30851290320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 30851290320 in words is "thirty billion, eight hundred fifty-one million, two hundred ninety thousand, three hundred twenty".