6885949427 has 4 divisors (see below), whose sum is σ = 7869656496. Its totient is φ = 5902242360.

The previous prime is 6885949409. The next prime is 6885949453. The reversal of 6885949427 is 7249495886.

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

It is not a de Polignac number, because 6885949427 - 2⁶ = 6885949363 is a prime.

It is a super-2 number, since 2×6885949427² = 94832599022403256658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6885949427.

It is not an unprimeable number, because it can be changed into a prime (6885949327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491853524 + ... + 491853537.

It is an arithmetic number, because the mean of its divisors is an integer number (1967414124).

Almost surely, 2^6885949427 is an apocalyptic number.

6885949427 is a deficient number, since it is larger than the sum of its proper divisors (983707069).

6885949427 is an equidigital number, since it uses as much as digits as its factorization.

6885949427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983707068.

The product of its digits is 34836480, while the sum is 62.

The square root of 6885949427 is about 82981.6210193558. The cubic root of 6885949427 is about 1902.4851531423.

The spelling of 6885949427 in words is "six billion, eight hundred eighty-five million, nine hundred forty-nine thousand, four hundred twenty-seven".