30897349600 has 144 divisors (see below), whose sum is σ = 81350105760. Its totient is φ = 11391436800.

The previous prime is 30897349591. The next prime is 30897349603. The reversal of 30897349600 is 694379803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30897349603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8723830 + ... + 8727370.

It is an arithmetic number, because the mean of its divisors is an integer number (564931290).

Almost surely, 2^30897349600 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 30897349600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40675052880).

30897349600 is an abundant number, since it is smaller than the sum of its proper divisors (50452756160).

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

30897349600 is a wasteful number, since it uses less digits than its factorization.

30897349600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413 (or 4400 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 30897349600 in words is "thirty billion, eight hundred ninety-seven million, three hundred forty-nine thousand, six hundred".