6687771227995 has 24 divisors (see below), whose sum is σ = 9499781341008. Its totient is φ = 4489692567360.

The previous prime is 6687771227981. The next prime is 6687771228107. The reversal of 6687771227995 is 5997221777866.

It is not a de Polignac number, because 6687771227995 - 2⁷ = 6687771227867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425152417 + ... + 425168146.

It is an arithmetic number, because the mean of its divisors is an integer number (395824222542).

Almost surely, 2^{6687771227995} is an apocalyptic number.

6687771227995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6687771227995 is a deficient number, since it is larger than the sum of its proper divisors (2812010113013).

6687771227995 is a wasteful number, since it uses less digits than its factorization.

6687771227995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850320603 (or 850320592 counting only the distinct ones).

The product of its digits is 1120210560, while the sum is 76.

The spelling of 6687771227995 in words is "six trillion, six hundred eighty-seven billion, seven hundred seventy-one million, two hundred twenty-seven thousand, nine hundred ninety-five".