6886149542 has 4 divisors (see below), whose sum is σ = 10329224316. Its totient is φ = 3443074770.

The previous prime is 6886149539. The next prime is 6886149583. The reversal of 6886149542 is 2459416886.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721537384 + ... + 1721537387.

It is an arithmetic number, because the mean of its divisors is an integer number (2582306079).

Almost surely, 2^6886149542 is an apocalyptic number.

6886149542 is a deficient number, since it is larger than the sum of its proper divisors (3443074774).

6886149542 is a wasteful number, since it uses less digits than its factorization.

6886149542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443074773.

The product of its digits is 3317760, while the sum is 53.

The square root of 6886149542 is about 82982.8267896437. The cubic root of 6886149542 is about 1902.5035825606.

The spelling of 6886149542 in words is "six billion, eight hundred eighty-six million, one hundred forty-nine thousand, five hundred forty-two".