80681678 has 16 divisors (see below), whose sum is σ = 150885504. Its totient is φ = 31434360.

The previous prime is 80681669. The next prime is 80681681. The reversal of 80681678 is 87618608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261800 + ... + 262107.

It is an arithmetic number, because the mean of its divisors is an integer number (9430344).

Almost surely, 2^80681678 is an apocalyptic number.

80681678 is a deficient number, since it is larger than the sum of its proper divisors (70203826).

80681678 is a wasteful number, since it uses less digits than its factorization.

80681678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523927.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 80681678 is about 8982.2980355809. The cubic root of 80681678 is about 432.1073371542.

The spelling of 80681678 in words is "eighty million, six hundred eighty-one thousand, six hundred seventy-eight".