20874658652 has 48 divisors (see below), whose sum is σ = 37614689280. Its totient is φ = 10132379712.

The previous prime is 20874658639. The next prime is 20874658663. The reversal of 20874658652 is 25685647802.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 20874658594 and 20874658603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8460323 + ... + 8462789.

It is an arithmetic number, because the mean of its divisors is an integer number (783639360).

Almost surely, 2^20874658652 is an apocalyptic number.

It is an amenable number.

20874658652 is a deficient number, since it is larger than the sum of its proper divisors (16740030628).

20874658652 is a wasteful number, since it uses less digits than its factorization.

20874658652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 20874658652 in words is "twenty billion, eight hundred seventy-four million, six hundred fifty-eight thousand, six hundred fifty-two".