9722222765 has 48 divisors (see below), whose sum is σ = 12620914560. Its totient is φ = 7186596480.

The previous prime is 9722222747. The next prime is 9722222777. The reversal of 9722222765 is 5672222279.

It is not a de Polignac number, because 9722222765 - 2¹⁸ = 9721960621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13712231 + ... + 13712939.

It is an arithmetic number, because the mean of its divisors is an integer number (262935720).

Almost surely, 2^9722222765 is an apocalyptic number.

9722222765 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9722222765 is a deficient number, since it is larger than the sum of its proper divisors (2898691795).

9722222765 is a wasteful number, since it uses less digits than its factorization.

9722222765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 911 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 9722222765 is about 98601.3324707126. The cubic root of 9722222765 is about 2134.2986480308.

The spelling of 9722222765 in words is "nine billion, seven hundred twenty-two million, two hundred twenty-two thousand, seven hundred sixty-five".