2786145728 has 28 divisors (see below), whose sum is σ = 5570978952. Its totient is φ = 1382434560.

The previous prime is 2786145727. The next prime is 2786145737. The reversal of 2786145728 is 8275416872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2786145727) 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, 157775 + ... + 174542.

It is an arithmetic number, because the mean of its divisors is an integer number (198963534).

Almost surely, 2^2786145728 is an apocalyptic number.

It is an amenable number.

2786145728 is a deficient number, since it is larger than the sum of its proper divisors (2784833224).

2786145728 is a wasteful number, since it uses less digits than its factorization.

2786145728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332460 (or 332450 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The square root of 2786145728 is about 52783.9533191670. The cubic root of 2786145728 is about 1407.1312542913.

The spelling of 2786145728 in words is "two billion, seven hundred eighty-six million, one hundred forty-five thousand, seven hundred twenty-eight".