8061251856 has 200 divisors, whose sum is σ = 24548860320. Its totient is φ = 2279144448.

The previous prime is 8061251831. The next prime is 8061251867. The reversal of 8061251856 is 6581521608.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13022715 + ... + 13023333.

Almost surely, 2^8061251856 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 8061251856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12274430160).

8061251856 is an abundant number, since it is smaller than the sum of its proper divisors (16487608464).

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

8061251856 is a wasteful number, since it uses less digits than its factorization.

8061251856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 8061251856 is about 89784.4744708126. The cubic root of 8061251856 is about 2005.0913494158.

The spelling of 8061251856 in words is "eight billion, sixty-one million, two hundred fifty-one thousand, eight hundred fifty-six".