30636272628 has 144 divisors (see below), whose sum is σ = 91575731520. Its totient is φ = 8871980544.

The previous prime is 30636272593. The next prime is 30636272647. The reversal of 30636272628 is 82627263603.

30636272628 is a `hidden beast` number, since 3 + 0 + 636 + 2 + 7 + 2 + 6 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143503 + ... + 286121.

It is an arithmetic number, because the mean of its divisors is an integer number (635942580).

Almost surely, 2^30636272628 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 30636272628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45787865760).

30636272628 is an abundant number, since it is smaller than the sum of its proper divisors (60939458892).

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

30636272628 is a wasteful number, since it uses less digits than its factorization.

30636272628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142668 (or 142654 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 30636272628 in words is "thirty billion, six hundred thirty-six million, two hundred seventy-two thousand, six hundred twenty-eight".