80681378 has 8 divisors (see below), whose sum is σ = 126283968. Its totient is φ = 38586724.

The previous prime is 80681351. The next prime is 80681387. The reversal of 80681378 is 87318608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876926 + ... + 877017.

It is an arithmetic number, because the mean of its divisors is an integer number (15785496).

Almost surely, 2^80681378 is an apocalyptic number.

80681378 is a deficient number, since it is larger than the sum of its proper divisors (45602590).

80681378 is a wasteful number, since it uses less digits than its factorization.

80681378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753968.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 80681378 is about 8982.2813360527. The cubic root of 80681378 is about 432.1068015830.

The spelling of 80681378 in words is "eighty million, six hundred eighty-one thousand, three hundred seventy-eight".