2789256544 has 48 divisors (see below), whose sum is σ = 5936641200. Its totient is φ = 1285507584.

The previous prime is 2789256539. The next prime is 2789256551. The reversal of 2789256544 is 4456529872.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2789256491 and 2789256500.

It is a congruent number.

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, 39499 + ... + 84490.

It is an arithmetic number, because the mean of its divisors is an integer number (123680025).

Almost surely, 2^2789256544 is an apocalyptic number.

It is an amenable number.

2789256544 is an abundant number, since it is smaller than the sum of its proper divisors (3147384656).

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

2789256544 is a wasteful number, since it uses less digits than its factorization.

2789256544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124055 (or 124047 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 2789256544 is about 52813.4125388618. The cubic root of 2789256544 is about 1407.6547610420.

The spelling of 2789256544 in words is "two billion, seven hundred eighty-nine million, two hundred fifty-six thousand, five hundred forty-four".