80627856381 has 16 divisors (see below), whose sum is σ = 121131054720. Its totient is φ = 52994833920.

The previous prime is 80627856373. The next prime is 80627856401. The reversal of 80627856381 is 18365872608.

80627856381 is a `hidden beast` number, since 8 + 0 + 6 + 2 + 78 + 563 + 8 + 1 = 666.

It is not a de Polignac number, because 80627856381 - 2³ = 80627856373 is a prime.

It is a super-2 number, since 2×80627856381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80627856181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21027780 + ... + 21031613.

It is an arithmetic number, because the mean of its divisors is an integer number (7570690920).

Almost surely, 2^80627856381 is an apocalyptic number.

It is an amenable number.

80627856381 is a deficient number, since it is larger than the sum of its proper divisors (40503198339).

80627856381 is a wasteful number, since it uses less digits than its factorization.

80627856381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42059473 (or 42059467 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 80627856381 in words is "eighty billion, six hundred twenty-seven million, eight hundred fifty-six thousand, three hundred eighty-one".