820374070888 has 16 divisors (see below), whose sum is σ = 1542765783780. Its totient is φ = 408969861888.

The previous prime is 820374070877. The next prime is 820374070889. The reversal of 820374070888 is 888070473028.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 814401563364 + 5972507524 = 902442^2 + 77282^2 .

It is not an unprimeable number, because it can be changed into a prime (820374070889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152143831 + ... + 152149222.

Almost surely, 2^820374070888 is an apocalyptic number.

It is an amenable number.

820374070888 is a deficient number, since it is larger than the sum of its proper divisors (722391712892).

820374070888 is a wasteful number, since it uses less digits than its factorization.

820374070888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304293396 (or 304293392 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 820374070888 in words is "eight hundred twenty billion, three hundred seventy-four million, seventy thousand, eight hundred eighty-eight".