80206428006864 has 60 divisors (see below), whose sum is σ = 224509171777956. Its totient is φ = 26730405490176.

The previous prime is 80206428006857. The next prime is 80206428006893. The reversal of 80206428006864 is 46860082460208.

80206428006864 is a `hidden beast` number, since 8 + 0 + 206 + 428 + 0 + 0 + 6 + 8 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52813765566864 + 27392662440000 = 7267308^2 + 5233800^2 .

It is a super-2 number, since 2×80206428006864² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80206428006864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52055887 + ... + 53574510.

Almost surely, 2^{80206428006864} is an apocalyptic number.

It is an amenable number.

80206428006864 is an abundant number, since it is smaller than the sum of its proper divisors (144302743771092).

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

80206428006864 is a wasteful number, since it uses less digits than its factorization.

80206428006864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105635684 (or 105635675 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 80206428006864 in words is "eighty trillion, two hundred six billion, four hundred twenty-eight million, six thousand, eight hundred sixty-four".