808378407815 has 16 divisors (see below), whose sum is σ = 1061980212096. Its totient is φ = 585834132000.

The previous prime is 808378407797. The next prime is 808378407821. The reversal of 808378407815 is 518704873808.

It is not a de Polignac number, because 808378407815 - 2¹⁸ = 808378145671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25952261 + ... + 25983390.

It is an arithmetic number, because the mean of its divisors is an integer number (66373763256).

Almost surely, 2^808378407815 is an apocalyptic number.

808378407815 is a deficient number, since it is larger than the sum of its proper divisors (253601804281).

808378407815 is a wasteful number, since it uses less digits than its factorization.

808378407815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51935950.

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 808378407815 in words is "eight hundred eight billion, three hundred seventy-eight million, four hundred seven thousand, eight hundred fifteen".