20612452528 has 20 divisors (see below), whose sum is σ = 39950027608. Its totient is φ = 10302768000.

The previous prime is 20612452489. The next prime is 20612452529. The reversal of 20612452528 is 82525421602.

It is not an unprimeable number, because it can be changed into a prime (20612452529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166626 + ... + 262657.

Almost surely, 2^20612452528 is an apocalyptic number.

It is an amenable number.

20612452528 is a deficient number, since it is larger than the sum of its proper divisors (19337575080).

20612452528 is a wasteful number, since it uses less digits than its factorization.

20612452528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432292 (or 432286 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 20612452528 in words is "twenty billion, six hundred twelve million, four hundred fifty-two thousand, five hundred twenty-eight".