8509760401 has 4 divisors (see below), whose sum is σ = 8670321972. Its totient is φ = 8349198832.

The previous prime is 8509760381. The next prime is 8509760407. The reversal of 8509760401 is 1040679058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6304518801 + 2205241600 = 79401^2 + 46960^2 .

It is a cyclic number.

It is not a de Polignac number, because 8509760401 - 2²¹ = 8507663249 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8509760407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80280706 + ... + 80280811.

It is an arithmetic number, because the mean of its divisors is an integer number (2167580493).

Almost surely, 2^8509760401 is an apocalyptic number.

It is an amenable number.

8509760401 is a deficient number, since it is larger than the sum of its proper divisors (160561571).

8509760401 is a wasteful number, since it uses less digits than its factorization.

8509760401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160561570.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 8509760401 is about 92248.3625925143. The cubic root of 8509760401 is about 2041.6084009902.

The spelling of 8509760401 in words is "eight billion, five hundred nine million, seven hundred sixty thousand, four hundred one".