6858895540 has 96 divisors (see below), whose sum is σ = 16861420800. Its totient is φ = 2342648448.

The previous prime is 6858895507. The next prime is 6858895543. The reversal of 6858895540 is 455988586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6858895543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1939614 + ... + 1943146.

It is an arithmetic number, because the mean of its divisors is an integer number (175639800).

Almost surely, 2^6858895540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6858895540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8430710400).

6858895540 is an abundant number, since it is smaller than the sum of its proper divisors (10002525260).

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

6858895540 is a wasteful number, since it uses less digits than its factorization.

6858895540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 58.

The square root of 6858895540 is about 82818.4492730937. The cubic root of 6858895540 is about 1899.9903545217.

The spelling of 6858895540 in words is "six billion, eight hundred fifty-eight million, eight hundred ninety-five thousand, five hundred forty".