30191228652 has 24 divisors (see below), whose sum is σ = 75865139056. Its totient is φ = 9289608768.

The previous prime is 30191228611. The next prime is 30191228677. The reversal of 30191228652 is 25682219103.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 30191228652.

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, 96766603 + ... + 96766914.

Almost surely, 2^30191228652 is an apocalyptic number.

It is an amenable number.

30191228652 is an abundant number, since it is smaller than the sum of its proper divisors (45673910404).

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

30191228652 is a wasteful number, since it uses less digits than its factorization.

30191228652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193533537 (or 193533535 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 30191228652 in words is "thirty billion, one hundred ninety-one million, two hundred twenty-eight thousand, six hundred fifty-two".