2645888376 has 16 divisors (see below), whose sum is σ = 6614721000. Its totient is φ = 881962784.

The previous prime is 2645888363. The next prime is 2645888393. The reversal of 2645888376 is 6738885462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55122651 + ... + 55122698.

Almost surely, 2^2645888376 is an apocalyptic number.

It is an amenable number.

2645888376 is an abundant number, since it is smaller than the sum of its proper divisors (3968832624).

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

2645888376 is a wasteful number, since it uses less digits than its factorization.

2645888376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110245358 (or 110245354 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The square root of 2645888376 is about 51438.1995796898. The cubic root of 2645888376 is about 1383.1114377847. Note that the first 3 decimals are identical.

The spelling of 2645888376 in words is "two billion, six hundred forty-five million, eight hundred eighty-eight thousand, three hundred seventy-six".