8106510978 has 24 divisors (see below), whose sum is σ = 17574708528. Its totient is φ = 2700539352.

The previous prime is 8106510959. The next prime is 8106511019. The reversal of 8106510978 is 8790156018.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105076 + ... + 165087.

It is an arithmetic number, because the mean of its divisors is an integer number (732279522).

Almost surely, 2^8106510978 is an apocalyptic number.

8106510978 is an abundant number, since it is smaller than the sum of its proper divisors (9468197550).

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

8106510978 is a wasteful number, since it uses less digits than its factorization.

8106510978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271838 (or 271835 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 8106510978 is about 90036.1648339155. The cubic root of 8106510978 is about 2008.8368126990.

The spelling of 8106510978 in words is "eight billion, one hundred six million, five hundred ten thousand, nine hundred seventy-eight".