2765667872 has 24 divisors (see below), whose sum is σ = 5939901072. Its totient is φ = 1257121600.

The previous prime is 2765667871. The next prime is 2765667887. The reversal of 2765667872 is 2787665672.

It is not an unprimeable number, because it can be changed into a prime (2765667871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928154 + ... + 3928857.

It is an arithmetic number, because the mean of its divisors is an integer number (247495878).

Almost surely, 2^2765667872 is an apocalyptic number.

2765667872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2765667872 is an abundant number, since it is smaller than the sum of its proper divisors (3174233200).

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

2765667872 is a wasteful number, since it uses less digits than its factorization.

2765667872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857032 (or 7857024 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 56.

The square root of 2765667872 is about 52589.6175304594. The cubic root of 2765667872 is about 1403.6753550623.

The spelling of 2765667872 in words is "two billion, seven hundred sixty-five million, six hundred sixty-seven thousand, eight hundred seventy-two".