20828887052 has 6 divisors (see below), whose sum is σ = 36450552348. Its totient is φ = 10414443524.

The previous prime is 20828887019. The next prime is 20828887069. The reversal of 20828887052 is 25078882802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603610878 + ... + 2603610885.

It is an arithmetic number, because the mean of its divisors is an integer number (6075092058).

Almost surely, 2^20828887052 is an apocalyptic number.

It is an amenable number.

20828887052 is a deficient number, since it is larger than the sum of its proper divisors (15621665296).

20828887052 is a wasteful number, since it uses less digits than its factorization.

20828887052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207221767 (or 5207221765 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 50.

The spelling of 20828887052 in words is "twenty billion, eight hundred twenty-eight million, eight hundred eighty-seven thousand, fifty-two".