30205172472 has 16 divisors (see below), whose sum is σ = 75512931240. Its totient is φ = 10068390816.

The previous prime is 30205172449. The next prime is 30205172483. The reversal of 30205172472 is 27427150203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629274403 + ... + 629274450.

Almost surely, 2^30205172472 is an apocalyptic number.

It is an amenable number.

30205172472 is an abundant number, since it is smaller than the sum of its proper divisors (45307758768).

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

30205172472 is a wasteful number, since it uses less digits than its factorization.

30205172472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258548862 (or 1258548858 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 30205172472 in words is "thirty billion, two hundred five million, one hundred seventy-two thousand, four hundred seventy-two".