2628172783 has 4 divisors (see below), whose sum is σ = 2782771200. Its totient is φ = 2473574368.

The previous prime is 2628172747. The next prime is 2628172819. The reversal of 2628172783 is 3872718262.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2628172747) and next prime (2628172819).

It is a cyclic number.

It is not a de Polignac number, because 2628172783 - 2²¹ = 2626075631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628175783) 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, 77299183 + ... + 77299216.

It is an arithmetic number, because the mean of its divisors is an integer number (695692800).

Almost surely, 2^2628172783 is an apocalyptic number.

2628172783 is a deficient number, since it is larger than the sum of its proper divisors (154598417).

2628172783 is a wasteful number, since it uses less digits than its factorization.

2628172783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154598416.

The product of its digits is 451584, while the sum is 46.

The square root of 2628172783 is about 51265.7076709178. The cubic root of 2628172783 is about 1380.0176401512.

The spelling of 2628172783 in words is "two billion, six hundred twenty-eight million, one hundred seventy-two thousand, seven hundred eighty-three".