6887822977464 has 64 divisors (see below), whose sum is σ = 20229969594240. Its totient is φ = 1926663768960.

The previous prime is 6887822977429. The next prime is 6887822977513. The reversal of 6887822977464 is 4647792287886.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a self number, because there is not a number n which added to its sum of digits gives 6887822977464.

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, 1003467282 + ... + 1003474145.

It is an arithmetic number, because the mean of its divisors is an integer number (316093274910).

Almost surely, 2^{6887822977464} is an apocalyptic number.

It is an amenable number.

6887822977464 is an abundant number, since it is smaller than the sum of its proper divisors (13342146616776).

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

6887822977464 is a wasteful number, since it uses less digits than its factorization.

6887822977464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006941460 (or 2006941456 counting only the distinct ones).

The product of its digits is 3641573376, while the sum is 78.

The spelling of 6887822977464 in words is "six trillion, eight hundred eighty-seven billion, eight hundred twenty-two million, nine hundred seventy-seven thousand, four hundred sixty-four".