808381028655 has 96 divisors (see below), whose sum is σ = 1520523845568. Its totient is φ = 395690803200.

The previous prime is 808381028647. The next prime is 808381028711. The reversal of 808381028655 is 556820183808.

It is a happy number.

It is not a de Polignac number, because 808381028655 - 2³ = 808381028647 is a prime.

It is a super-3 number, since 3×808381028655³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84900295 + ... + 84909815.

It is an arithmetic number, because the mean of its divisors is an integer number (15838790058).

Almost surely, 2^808381028655 is an apocalyptic number.

808381028655 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

808381028655 is a deficient number, since it is larger than the sum of its proper divisors (712142816913).

808381028655 is a wasteful number, since it uses less digits than its factorization.

808381028655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12297 (or 12294 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 808381028655 in words is "eight hundred eight billion, three hundred eighty-one million, twenty-eight thousand, six hundred fifty-five".