2667278485 has 8 divisors (see below), whose sum is σ = 3204600120. Its totient is φ = 2131245504.

The previous prime is 2667278483. The next prime is 2667278491. The reversal of 2667278485 is 5848727662.

It can be written as a sum of positive squares in 4 ways, for example, as 1189491121 + 1477787364 = 34489^2 + 38442^2 .

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 2667278485 - 2¹ = 2667278483 is a prime.

It is a super-2 number, since 2×2667278485² = 14228749033087790450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667278483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317602 + ... + 325891.

It is an arithmetic number, because the mean of its divisors is an integer number (400575015).

Almost surely, 2^2667278485 is an apocalyptic number.

It is an amenable number.

2667278485 is a deficient number, since it is larger than the sum of its proper divisors (537321635).

2667278485 is an equidigital number, since it uses as much as digits as its factorization.

2667278485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644327.

The product of its digits is 9031680, while the sum is 55.

The square root of 2667278485 is about 51645.7015152278. The cubic root of 2667278485 is about 1386.8285933765.

The spelling of 2667278485 in words is "two billion, six hundred sixty-seven million, two hundred seventy-eight thousand, four hundred eighty-five".