820802202628 has 12 divisors (see below), whose sum is σ = 1437035812380. Its totient is φ = 410220541952.

The previous prime is 820802202611. The next prime is 820802202637. The reversal of 820802202628 is 826202208028.

It can be written as a sum of positive squares in 2 ways, for example, as 277105382464 + 543696820164 = 526408^2 + 737358^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45129613 + ... + 45147796.

It is an arithmetic number, because the mean of its divisors is an integer number (119752984365).

Almost surely, 2^820802202628 is an apocalyptic number.

It is an amenable number.

820802202628 is a deficient number, since it is larger than the sum of its proper divisors (616233609752).

820802202628 is a wasteful number, since it uses less digits than its factorization.

820802202628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90279686 (or 90279684 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 820802202628 in words is "eight hundred twenty billion, eight hundred two million, two hundred two thousand, six hundred twenty-eight".