80643070837854 has 40 divisors (see below), whose sum is σ = 206514530614128. Its totient is φ = 23040877381920.

The previous prime is 80643070837843. The next prime is 80643070837871. The reversal of 80643070837854 is 45873807034608.

80643070837854 is a `hidden beast` number, since 8 + 0 + 6 + 430 + 7 + 0 + 83 + 78 + 54 = 666.

It is a super-3 number, since 3×80643070837854³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80643070837791 and 80643070837800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35556908407 + ... + 35556910674.

Almost surely, 2^{80643070837854} is an apocalyptic number.

80643070837854 is an abundant number, since it is smaller than the sum of its proper divisors (125871459776274).

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

80643070837854 is a wasteful number, since it uses less digits than its factorization.

80643070837854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71113819102 (or 71113819093 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 80643070837854 in words is "eighty trillion, six hundred forty-three billion, seventy million, eight hundred thirty-seven thousand, eight hundred fifty-four".