2646276880 has 40 divisors (see below), whose sum is σ = 6625872792. Its totient is φ = 977086464.

The previous prime is 2646276877. The next prime is 2646276907. The reversal of 2646276880 is 886726462.

2646276880 = T₈₉₉₁ + T₈₉₉₂ + ... + T₉₀₅₅.

It can be written as a sum of positive squares in 4 ways, for example, as 147476736 + 2498800144 = 12144^2 + 49988^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271209 + ... + 1273288.

Almost surely, 2^2646276880 is an apocalyptic number.

2646276880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646276880 is an abundant number, since it is smaller than the sum of its proper divisors (3979595912).

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

2646276880 is a wasteful number, since it uses less digits than its factorization.

2646276880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544523 (or 2544517 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 2646276880 is about 51441.9758562985. The cubic root of 2646276880 is about 1383.1791299863.

The spelling of 2646276880 in words is "two billion, six hundred forty-six million, two hundred seventy-six thousand, eight hundred eighty".