806677999872 has 144 divisors (see below), whose sum is σ = 2164042648320. Its totient is φ = 266753673216.

The previous prime is 806677999801. The next prime is 806677999889. The reversal of 806677999872 is 278999776608.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 212114323 + ... + 212118125.

Almost surely, 2^806677999872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806677999872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082021324160).

806677999872 is an abundant number, since it is smaller than the sum of its proper divisors (1357364648448).

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

806677999872 is a wasteful number, since it uses less digits than its factorization.

806677999872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5948 (or 5934 counting only the distinct ones).

The product of its (nonzero) digits is 1152216576, while the sum is 78.

The spelling of 806677999872 in words is "eight hundred six billion, six hundred seventy-seven million, nine hundred ninety-nine thousand, eight hundred seventy-two".