6775519771861 has 8 divisors (see below), whose sum is σ = 7002860465664. Its totient is φ = 6548727549360.

The previous prime is 6775519771859. The next prime is 6775519771883. The reversal of 6775519771861 is 1681779155776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6775519771861 - 2¹ = 6775519771859 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 (6775513771861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 137092705 + ... + 137142118.

It is an arithmetic number, because the mean of its divisors is an integer number (875357558208).

Almost surely, 2^{6775519771861} is an apocalyptic number.

It is an amenable number.

6775519771861 is a deficient number, since it is larger than the sum of its proper divisors (227340693803).

6775519771861 is a wasteful number, since it uses less digits than its factorization.

6775519771861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274235651.

The product of its digits is 155584800, while the sum is 70.

The spelling of 6775519771861 in words is "six trillion, seven hundred seventy-five billion, five hundred nineteen million, seven hundred seventy-one thousand, eight hundred sixty-one".