20514786652 has 24 divisors (see below), whose sum is σ = 38097410400. Its totient is φ = 9632501760.

The previous prime is 20514786637. The next prime is 20514786659. The reversal of 20514786652 is 25668741502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514786659) 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, 305424 + ... + 366487.

It is an arithmetic number, because the mean of its divisors is an integer number (1587392100).

Almost surely, 2^20514786652 is an apocalyptic number.

It is an amenable number.

20514786652 is a deficient number, since it is larger than the sum of its proper divisors (17582623748).

20514786652 is a wasteful number, since it uses less digits than its factorization.

20514786652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672381 (or 672379 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 20514786652 in words is "twenty billion, five hundred fourteen million, seven hundred eighty-six thousand, six hundred fifty-two".