2687421371067 has 12 divisors (see below), whose sum is σ = 3881845309264. Its totient is φ = 1791607582800.

The previous prime is 2687421371027. The next prime is 2687421371077. The reversal of 2687421371067 is 7601731247862.

2687421371067 is a `hidden beast` number, since 2 + 6 + 87 + 421 + 37 + 106 + 7 = 666.

It is not a de Polignac number, because 2687421371067 - 2¹⁸ = 2687421108923 is a prime.

It is a super-3 number, since 3×2687421371067³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687421371027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3778053 + ... + 4432665.

Almost surely, 2^{2687421371067} is an apocalyptic number.

2687421371067 is a deficient number, since it is larger than the sum of its proper divisors (1194423938197).

2687421371067 is a wasteful number, since it uses less digits than its factorization.

2687421371067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110770 (or 1110767 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 2687421371067 in words is "two trillion, six hundred eighty-seven billion, four hundred twenty-one million, three hundred seventy-one thousand, sixty-seven".