30506436572 has 12 divisors (see below), whose sum is σ = 53625665856. Its totient is φ = 15184817760.

The previous prime is 30506436553. The next prime is 30506436577. The reversal of 30506436572 is 27563460503.

It is a super-2 number, since 2×30506436572² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30506436577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17099129 + ... + 17100912.

It is an arithmetic number, because the mean of its divisors is an integer number (4468805488).

Almost surely, 2^30506436572 is an apocalyptic number.

It is an amenable number.

30506436572 is a deficient number, since it is larger than the sum of its proper divisors (23119229284).

30506436572 is a wasteful number, since it uses less digits than its factorization.

30506436572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34200268 (or 34200266 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 30506436572 in words is "thirty billion, five hundred six million, four hundred thirty-six thousand, five hundred seventy-two".