2677864468655 has 4 divisors (see below), whose sum is σ = 3213437362392. Its totient is φ = 2142291574920.

The previous prime is 2677864468637. The next prime is 2677864468681. The reversal of 2677864468655 is 5568644687762.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2677864468655 - 2¹⁴ = 2677864452271 is a prime.

It is a super-2 number, since 2×2677864468655² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 267786446861 + ... + 267786446870.

It is an arithmetic number, because the mean of its divisors is an integer number (803359340598).

Almost surely, 2^{2677864468655} is an apocalyptic number.

2677864468655 is a deficient number, since it is larger than the sum of its proper divisors (535572893737).

2677864468655 is an equidigital number, since it uses as much as digits as its factorization.

2677864468655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535572893736.

The product of its digits is 3251404800, while the sum is 74.

The spelling of 2677864468655 in words is "two trillion, six hundred seventy-seven billion, eight hundred sixty-four million, four hundred sixty-eight thousand, six hundred fifty-five".