2669887271772 has 54 divisors (see below), whose sum is σ = 7713082608504. Its totient is φ = 762817523760.

The previous prime is 2669887271771. The next prime is 2669887271783. The reversal of 2669887271772 is 2771727889662.

It is a happy number.

2669887271772 is a `hidden beast` number, since 266 + 98 + 8 + 7 + 271 + 7 + 7 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2669887271772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669887271771) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 25887147 + ... + 25990077.

Almost surely, 2^{2669887271772} is an apocalyptic number.

It is an amenable number.

2669887271772 is an abundant number, since it is smaller than the sum of its proper divisors (5043195336732).

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

2669887271772 is an frugal number, since it uses more digits than its factorization.

2669887271772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205879 (or 102943 counting only the distinct ones).

The product of its digits is 398297088, while the sum is 72.

The spelling of 2669887271772 in words is "two trillion, six hundred sixty-nine billion, eight hundred eighty-seven million, two hundred seventy-one thousand, seven hundred seventy-two".