806688135488 has 28 divisors (see below), whose sum is σ = 1694934816372. Its totient is φ = 379617945600.

The previous prime is 806688135479. The next prime is 806688135499. The reversal of 806688135488 is 884531886608.

It can be written as a sum of positive squares in 2 ways, for example, as 323952212224 + 482735923264 = 569168^2 + 694792^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370719563 + ... + 370721738.

It is an arithmetic number, because the mean of its divisors is an integer number (60533386299).

Almost surely, 2^806688135488 is an apocalyptic number.

It is an amenable number.

806688135488 is an abundant number, since it is smaller than the sum of its proper divisors (888246680884).

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

806688135488 is a wasteful number, since it uses less digits than its factorization.

806688135488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741441330 (or 741441320 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 65.

The spelling of 806688135488 in words is "eight hundred six billion, six hundred eighty-eight million, one hundred thirty-five thousand, four hundred eighty-eight".