9872722511 has 8 divisors (see below), whose sum is σ = 10455070464. Its totient is φ = 9290552320.

The previous prime is 9872722463. The next prime is 9872722523. The reversal of 9872722511 is 1152272789.

9872722511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9872722511 - 2¹⁴ = 9872706127 is a prime.

It is a super-2 number, since 2×9872722511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872721511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79871 + ... + 161631.

It is an arithmetic number, because the mean of its divisors is an integer number (1306883808).

Almost surely, 2^9872722511 is an apocalyptic number.

9872722511 is a deficient number, since it is larger than the sum of its proper divisors (582347953).

9872722511 is a wasteful number, since it uses less digits than its factorization.

9872722511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88881.

The product of its digits is 141120, while the sum is 44.

The square root of 9872722511 is about 99361.5746201720. The cubic root of 9872722511 is about 2145.2552667917.

The spelling of 9872722511 in words is "nine billion, eight hundred seventy-two million, seven hundred twenty-two thousand, five hundred eleven".