6889206544 has 20 divisors (see below), whose sum is σ = 14561277840. Its totient is φ = 3131457440.

The previous prime is 6889206529. The next prime is 6889206551. The reversal of 6889206544 is 4456029886.

It is a super-2 number, since 2×6889206544² = 94922333611784847872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6889206491 and 6889206500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19571434 + ... + 19571785.

It is an arithmetic number, because the mean of its divisors is an integer number (728063892).

Almost surely, 2^6889206544 is an apocalyptic number.

It is an amenable number.

6889206544 is an abundant number, since it is smaller than the sum of its proper divisors (7672071296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6889206544 is a wasteful number, since it uses less digits than its factorization.

6889206544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39143238 (or 39143232 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The square root of 6889206544 is about 83001.2442316379. The cubic root of 6889206544 is about 1902.7850701466.

The spelling of 6889206544 in words is "six billion, eight hundred eighty-nine million, two hundred six thousand, five hundred forty-four".