30897670284 has 72 divisors (see below), whose sum is σ = 84332735760. Its totient is φ = 9481836672.

The previous prime is 30897670259. The next prime is 30897670313. The reversal of 30897670284 is 48207679803.

It is a self number, because there is not a number n which added to its sum of digits gives 30897670284.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90274 + ... + 264470.

Almost surely, 2^30897670284 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 30897670284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42166367880).

30897670284 is an abundant number, since it is smaller than the sum of its proper divisors (53435065476).

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

30897670284 is a wasteful number, since it uses less digits than its factorization.

30897670284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174599 (or 174594 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 30897670284 in words is "thirty billion, eight hundred ninety-seven million, six hundred seventy thousand, two hundred eighty-four".