80672673858 has 128 divisors (see below), whose sum is σ = 194077900800. Its totient is φ = 21872194560.

The previous prime is 80672673803. The next prime is 80672673863. The reversal of 80672673858 is 85837627608.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14802318 + ... + 14807766.

It is an arithmetic number, because the mean of its divisors is an integer number (1516233600).

Almost surely, 2^80672673858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80672673858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97038950400).

80672673858 is an abundant number, since it is smaller than the sum of its proper divisors (113405226942).

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

80672673858 is a wasteful number, since it uses less digits than its factorization.

80672673858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 80672673858 in words is "eighty billion, six hundred seventy-two million, six hundred seventy-three thousand, eight hundred fifty-eight".