30471343872 has 144 divisors (see below), whose sum is σ = 83396573568. Its totient is φ = 9871626240.

The previous prime is 30471343853. The next prime is 30471343891. The reversal of 30471343872 is 27834317403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30471343853) and next prime (30471343891).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6965878 + ... + 6970250.

It is an arithmetic number, because the mean of its divisors is an integer number (579142872).

Almost surely, 2^30471343872 is an apocalyptic number.

30471343872 is a gapful number since it is divisible by the number (32) 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 30471343872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41698286784).

30471343872 is an abundant number, since it is smaller than the sum of its proper divisors (52925229696).

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

30471343872 is a wasteful number, since it uses less digits than its factorization.

30471343872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 30471343872 in words is "thirty billion, four hundred seventy-one million, three hundred forty-three thousand, eight hundred seventy-two".