816887419295 has 16 divisors (see below), whose sum is σ = 1038093314688. Its totient is φ = 614969940480.

The previous prime is 816887419267. The next prime is 816887419297. The reversal of 816887419295 is 592914788618.

It is not a de Polignac number, because 816887419295 - 2¹² = 816887415199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816887419297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229916 + ... + 1298705.

It is an arithmetic number, because the mean of its divisors is an integer number (64880832168).

Almost surely, 2^816887419295 is an apocalyptic number.

816887419295 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

816887419295 is a deficient number, since it is larger than the sum of its proper divisors (221205895393).

816887419295 is a wasteful number, since it uses less digits than its factorization.

816887419295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534930.

The product of its digits is 69672960, while the sum is 68.

The spelling of 816887419295 in words is "eight hundred sixteen billion, eight hundred eighty-seven million, four hundred nineteen thousand, two hundred ninety-five".