6851445120 has 192 divisors, whose sum is σ = 25479090000. Its totient is φ = 1686491136.

The previous prime is 6851445103. The next prime is 6851445197. The reversal of 6851445120 is 215441586.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29131 + ... + 120629.

Almost surely, 2^6851445120 is an apocalyptic number.

6851445120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6851445120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12739545000).

6851445120 is an abundant number, since it is smaller than the sum of its proper divisors (18627644880).

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

6851445120 is a wasteful number, since it uses less digits than its factorization.

6851445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91537 (or 91522 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 6851445120 is about 82773.4566150285. The cubic root of 6851445120 is about 1899.3021555415.

The spelling of 6851445120 in words is "six billion, eight hundred fifty-one million, four hundred forty-five thousand, one hundred twenty".