80408026646 has 8 divisors (see below), whose sum is σ = 124771075920. Its totient is φ = 38817668008.

The previous prime is 80408026639. The next prime is 80408026649. The reversal of 80408026646 is 64662080408.

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

It is a junction number, because it is equal to n+sod(n) for n = 80408026597 and 80408026606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80408026649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693172586 + ... + 693172701.

It is an arithmetic number, because the mean of its divisors is an integer number (15596384490).

Almost surely, 2^80408026646 is an apocalyptic number.

80408026646 is a deficient number, since it is larger than the sum of its proper divisors (44363049274).

80408026646 is a wasteful number, since it uses less digits than its factorization.

80408026646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386345318.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 80408026646 in words is "eighty billion, four hundred eight million, twenty-six thousand, six hundred forty-six".