820432218048 has 28 divisors (see below), whose sum is σ = 2170726910760. Its totient is φ = 273477405952.

The previous prime is 820432218017. The next prime is 820432218079. The reversal of 820432218048 is 840812234028.

It is an interprime number because it is at equal distance from previous prime (820432218017) and next prime (820432218079).

It is a super-2 number, since 2×820432218048² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 2136542043 + ... + 2136542426.

Almost surely, 2^820432218048 is an apocalyptic number.

It is an amenable number.

820432218048 is an abundant number, since it is smaller than the sum of its proper divisors (1350294692712).

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

820432218048 is a wasteful number, since it uses less digits than its factorization.

820432218048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273084484 (or 4273084474 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 820432218048 in words is "eight hundred twenty billion, four hundred thirty-two million, two hundred eighteen thousand, forty-eight".