6787904087877 has 16 divisors (see below), whose sum is σ = 9875982957120. Its totient is φ = 4112769632000.

The previous prime is 6787904087863. The next prime is 6787904087977. The reversal of 6787904087877 is 7787804097876.

It is a cyclic number.

It is not a de Polignac number, because 6787904087877 - 2²³ = 6787895699269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6787904087477) 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, 27666852 + ... + 27911117.

It is an arithmetic number, because the mean of its divisors is an integer number (617248934820).

Almost surely, 2^{6787904087877} is an apocalyptic number.

It is an amenable number.

6787904087877 is a deficient number, since it is larger than the sum of its proper divisors (3088078869243).

6787904087877 is a wasteful number, since it uses less digits than its factorization.

6787904087877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55581684.

The product of its (nonzero) digits is 1858719744, while the sum is 78.

Subtracting 6787904087877 from its reverse (7787804097876), we obtain a palindrome (999900009999).

The spelling of 6787904087877 in words is "six trillion, seven hundred eighty-seven billion, nine hundred four million, eighty-seven thousand, eight hundred seventy-seven".