30205290072 has 32 divisors (see below), whose sum is σ = 77355013680. Its totient is φ = 9822858240.

The previous prime is 30205290061. The next prime is 30205290103. The reversal of 30205290072 is 27009250203.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15347233 + ... + 15349200.

Almost surely, 2^30205290072 is an apocalyptic number.

It is an amenable number.

30205290072 is an abundant number, since it is smaller than the sum of its proper divisors (47149723608).

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

30205290072 is a wasteful number, since it uses less digits than its factorization.

30205290072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30696483 (or 30696479 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 30205290072 in words is "thirty billion, two hundred five million, two hundred ninety thousand, seventy-two".