6885825478 has 16 divisors (see below), whose sum is σ = 11805509664. Its totient is φ = 2950758720.

The previous prime is 6885825451. The next prime is 6885825481. The reversal of 6885825478 is 8745285886.

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 7 ways as a sum of consecutive naturals, for example, 157458 + ... + 196378.

It is an arithmetic number, because the mean of its divisors is an integer number (737844354).

Almost surely, 2^6885825478 is an apocalyptic number.

6885825478 is a deficient number, since it is larger than the sum of its proper divisors (4919684186).

6885825478 is a wasteful number, since it uses less digits than its factorization.

6885825478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51567.

The product of its digits is 34406400, while the sum is 61.

The square root of 6885825478 is about 82980.8741698953. The cubic root of 6885825478 is about 1902.4737379869.

The spelling of 6885825478 in words is "six billion, eight hundred eighty-five million, eight hundred twenty-five thousand, four hundred seventy-eight".