8051578656 has 48 divisors (see below), whose sum is σ = 23056796448. Its totient is φ = 2439872000.

The previous prime is 8051578649. The next prime is 8051578657. The reversal of 8051578656 is 6568751508.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 8051578599 and 8051578608.

It is not an unprimeable number, because it can be changed into a prime (8051578657) 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 7 ways as a sum of consecutive naturals, for example, 3811245 + ... + 3813356.

It is an arithmetic number, because the mean of its divisors is an integer number (480349926).

Almost surely, 2^8051578656 is an apocalyptic number.

It is an amenable number.

8051578656 is an abundant number, since it is smaller than the sum of its proper divisors (15005217792).

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

8051578656 is a wasteful number, since it uses less digits than its factorization.

8051578656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624625 (or 7624617 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The square root of 8051578656 is about 89730.5892993019. The cubic root of 8051578656 is about 2004.2890169253.

The spelling of 8051578656 in words is "eight billion, fifty-one million, five hundred seventy-eight thousand, six hundred fifty-six".