80403716918 has 24 divisors (see below), whose sum is σ = 140414678712. Its totient is φ = 34429655904.

The previous prime is 80403716903. The next prime is 80403716957. The reversal of 80403716918 is 81961730408.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229271 + ... + 461922.

It is an arithmetic number, because the mean of its divisors is an integer number (5850611613).

Almost surely, 2^80403716918 is an apocalyptic number.

80403716918 is a deficient number, since it is larger than the sum of its proper divisors (60010961794).

80403716918 is a wasteful number, since it uses less digits than its factorization.

80403716918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692396 (or 692389 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 80403716918 in words is "eighty billion, four hundred three million, seven hundred sixteen thousand, nine hundred eighteen".