2667781212 has 24 divisors (see below), whose sum is σ = 6225776256. Its totient is φ = 889124208.

The previous prime is 2667781211. The next prime is 2667781261. The reversal of 2667781212 is 2121877662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667781211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93063 + ... + 118305.

It is an arithmetic number, because the mean of its divisors is an integer number (259407344).

Almost surely, 2^2667781212 is an apocalyptic number.

It is an amenable number.

2667781212 is an abundant number, since it is smaller than the sum of its proper divisors (3557995044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2667781212 is a wasteful number, since it uses less digits than its factorization.

2667781212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34057 (or 34055 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 2667781212 is about 51650.5683608612. The cubic root of 2667781212 is about 1386.9157174350.

The spelling of 2667781212 in words is "two billion, six hundred sixty-seven million, seven hundred eighty-one thousand, two hundred twelve".