20652357828 has 24 divisors (see below), whose sum is σ = 48191217760. Its totient is φ = 6883778880.

The previous prime is 20652357779. The next prime is 20652357841. The reversal of 20652357828 is 82875325602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371088 + ... + 423096.

Almost surely, 2^20652357828 is an apocalyptic number.

It is an amenable number.

20652357828 is an abundant number, since it is smaller than the sum of its proper divisors (27538859932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20652357828 is a wasteful number, since it uses less digits than its factorization.

20652357828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85107 (or 85105 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 20652357828 in words is "twenty billion, six hundred fifty-two million, three hundred fifty-seven thousand, eight hundred twenty-eight".