20787845230 has 16 divisors (see below), whose sum is σ = 37419919920. Its totient is φ = 8314738432.

The previous prime is 20787845209. The next prime is 20787845231. The reversal of 20787845230 is 3254878702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20787845231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260181 + ... + 330559.

It is an arithmetic number, because the mean of its divisors is an integer number (2338744995).

Almost surely, 2^20787845230 is an apocalyptic number.

20787845230 is a deficient number, since it is larger than the sum of its proper divisors (16632074690).

20787845230 is a wasteful number, since it uses less digits than its factorization.

20787845230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99923.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 20787845230 in words is "twenty billion, seven hundred eighty-seven million, eight hundred forty-five thousand, two hundred thirty".