6872783725 has 6 divisors (see below), whose sum is σ = 8522251850. Its totient is φ = 5498226960.

The previous prime is 6872783657. The next prime is 6872783737. The reversal of 6872783725 is 5273872786.

It can be written as a sum of positive squares in 3 ways, for example, as 802192329 + 6070591396 = 28323^2 + 77914^2 .

It is not a de Polignac number, because 6872783725 - 2²⁹ = 6335912813 is a prime.

It is a super-2 number, since 2×6872783725² = 94470312261249751250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137455650 + ... + 137455699.

Almost surely, 2^6872783725 is an apocalyptic number.

It is an amenable number.

6872783725 is a deficient number, since it is larger than the sum of its proper divisors (1649468125).

6872783725 is a wasteful number, since it uses less digits than its factorization.

6872783725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274911359 (or 274911354 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 55.

The square root of 6872783725 is about 82902.2540405265. The cubic root of 6872783725 is about 1901.2718838521.

The spelling of 6872783725 in words is "six billion, eight hundred seventy-two million, seven hundred eighty-three thousand, seven hundred twenty-five".