30251346128 has 80 divisors (see below), whose sum is σ = 62712652800. Its totient is φ = 14095036800.

The previous prime is 30251346053. The next prime is 30251346149. The reversal of 30251346128 is 82164315203.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6794303 + ... + 6798753.

It is an arithmetic number, because the mean of its divisors is an integer number (783908160).

Almost surely, 2^30251346128 is an apocalyptic number.

30251346128 is a gapful number since it is divisible by the number (38) 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 30251346128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31356326400).

30251346128 is an abundant number, since it is smaller than the sum of its proper divisors (32461306672).

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

30251346128 is a wasteful number, since it uses less digits than its factorization.

30251346128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840 (or 4834 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 30251346128 in words is "thirty billion, two hundred fifty-one million, three hundred forty-six thousand, one hundred twenty-eight".