8513723801 has 4 divisors (see below), whose sum is σ = 9287698704. Its totient is φ = 7739748900.

The previous prime is 8513723767. The next prime is 8513723809. The reversal of 8513723801 is 1083273158.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8513723801 - 2²⁶ = 8446614937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8513723809) 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, 386987435 + ... + 386987456.

It is an arithmetic number, because the mean of its divisors is an integer number (2321924676).

Almost surely, 2^8513723801 is an apocalyptic number.

It is an amenable number.

8513723801 is a deficient number, since it is larger than the sum of its proper divisors (773974903).

8513723801 is a wasteful number, since it uses less digits than its factorization.

8513723801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773974902.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 8513723801 is about 92269.8423158943. The cubic root of 8513723801 is about 2041.9253098277.

Adding to 8513723801 its reverse (1083273158), we get a palindrome (9596996959).

The spelling of 8513723801 in words is "eight billion, five hundred thirteen million, seven hundred twenty-three thousand, eight hundred one".