9722513841 has 4 divisors (see below), whose sum is σ = 12963351792. Its totient is φ = 6481675892.

The previous prime is 9722513837. The next prime is 9722513851. The reversal of 9722513841 is 1483152279.

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 9722513841 - 2² = 9722513837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9722513793 and 9722513802.

It is not an unprimeable number, because it can be changed into a prime (9722513831) 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, 1620418971 + ... + 1620418976.

It is an arithmetic number, because the mean of its divisors is an integer number (3240837948).

Almost surely, 2^9722513841 is an apocalyptic number.

It is an amenable number.

9722513841 is a deficient number, since it is larger than the sum of its proper divisors (3240837951).

9722513841 is a wasteful number, since it uses less digits than its factorization.

9722513841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240837950.

The product of its digits is 120960, while the sum is 42.

The square root of 9722513841 is about 98602.8084843429. The cubic root of 9722513841 is about 2134.3199475809.

The spelling of 9722513841 in words is "nine billion, seven hundred twenty-two million, five hundred thirteen thousand, eight hundred forty-one".