6898864131777 has 16 divisors (see below), whose sum is σ = 9736969429440. Its totient is φ = 4337377286592.

The previous prime is 6898864131773. The next prime is 6898864131791. The reversal of 6898864131777 is 7771314688986.

It is not a de Polignac number, because 6898864131777 - 2² = 6898864131773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6898864131699 and 6898864131708.

It is not an unprimeable number, because it can be changed into a prime (6898864131773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922057758 + ... + 922065239.

It is an arithmetic number, because the mean of its divisors is an integer number (608560589340).

Almost surely, 2^{6898864131777} is an apocalyptic number.

It is an amenable number.

6898864131777 is a deficient number, since it is larger than the sum of its proper divisors (2838105297663).

6898864131777 is a wasteful number, since it uses less digits than its factorization.

6898864131777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844123072.

The product of its digits is 682795008, while the sum is 75.

The spelling of 6898864131777 in words is "six trillion, eight hundred ninety-eight billion, eight hundred sixty-four million, one hundred thirty-one thousand, seven hundred seventy-seven".