6889257836 has 6 divisors (see below), whose sum is σ = 12056201220. Its totient is φ = 3444628916.

The previous prime is 6889257829. The next prime is 6889257863. The reversal of 6889257836 is 6387529886.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861157226 + ... + 861157233.

It is an arithmetic number, because the mean of its divisors is an integer number (2009366870).

Almost surely, 2^6889257836 is an apocalyptic number.

It is an amenable number.

6889257836 is a deficient number, since it is larger than the sum of its proper divisors (5166943384).

6889257836 is a wasteful number, since it uses less digits than its factorization.

6889257836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722314463 (or 1722314461 counting only the distinct ones).

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

The square root of 6889257836 is about 83001.5532143827. The cubic root of 6889257836 is about 1902.7897923842.

The spelling of 6889257836 in words is "six billion, eight hundred eighty-nine million, two hundred fifty-seven thousand, eight hundred thirty-six".