80681474672 has 20 divisors (see below), whose sum is σ = 156324793680. Its totient is φ = 40339592448.

The previous prime is 80681474641. The next prime is 80681474677. The reversal of 80681474672 is 27647418608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80681474677) 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, 963704 + ... + 1044072.

It is an arithmetic number, because the mean of its divisors is an integer number (7816239684).

Almost surely, 2^80681474672 is an apocalyptic number.

It is an amenable number.

80681474672 is a deficient number, since it is larger than the sum of its proper divisors (75643319008).

80681474672 is a wasteful number, since it uses less digits than its factorization.

80681474672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143120 (or 143114 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 80681474672 in words is "eighty billion, six hundred eighty-one million, four hundred seventy-four thousand, six hundred seventy-two".