6701878225 has 27 divisors (see below), whose sum is σ = 9671252187. Its totient is φ = 4593608880.

The previous prime is 6701878093. The next prime is 6701878273. The reversal of 6701878225 is 5228781076.

The square root of 6701878225 is 81865.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2412676161 + 4289202064 = 49119^2 + 65492^2 .

It is not a de Polignac number, because 6701878225 - 2⁹ = 6701877713 is a prime.

It is a Duffinian 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 26 ways as a sum of consecutive naturals, for example, 2864106 + ... + 2866444.

Almost surely, 2^6701878225 is an apocalyptic number.

6701878225 is the 81865-th square number.

6701878225 is the 40933-rd centered octagonal number.

It is an amenable number.

6701878225 is a deficient number, since it is larger than the sum of its proper divisors (2969373962).

6701878225 is an frugal number, since it uses more digits than its factorization.

6701878225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The cubic root of 6701878225 is about 1885.3797755867.

The spelling of 6701878225 in words is "six billion, seven hundred one million, eight hundred seventy-eight thousand, two hundred twenty-five".