6857555000 has 40 divisors (see below), whose sum is σ = 16067263080. Its totient is φ = 2743020000.

The previous prime is 6857554973. The next prime is 6857555009. The reversal of 6857555000 is 5557586.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857555009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 680756 + ... + 690755.

It is an arithmetic number, because the mean of its divisors is an integer number (401681577).

Almost surely, 2^6857555000 is an apocalyptic number.

It is an amenable number.

6857555000 is an abundant number, since it is smaller than the sum of its proper divisors (9209708080).

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

6857555000 is a wasteful number, since it uses less digits than its factorization.

6857555000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371537 (or 1371518 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 6857555000 is about 82810.3556326140. The cubic root of 6857555000 is about 1899.8665649598.

The spelling of 6857555000 in words is "six billion, eight hundred fifty-seven million, five hundred fifty-five thousand".