7228722873 has 16 divisors (see below), whose sum is σ = 9773730560. Its totient is φ = 4751478144.

The previous prime is 7228722869. The next prime is 7228722889. The reversal of 7228722873 is 3782278227.

It is not a de Polignac number, because 7228722873 - 2² = 7228722869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7228722863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1235088 + ... + 1240926.

It is an arithmetic number, because the mean of its divisors is an integer number (610858160).

Almost surely, 2^7228722873 is an apocalyptic number.

7228722873 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7228722873 is a deficient number, since it is larger than the sum of its proper divisors (2545007687).

7228722873 is a wasteful number, since it uses less digits than its factorization.

7228722873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11568.

The product of its digits is 1053696, while the sum is 48.

The square root of 7228722873 is about 85021.8964326249. The cubic root of 7228722873 is about 1933.5431056931.

The spelling of 7228722873 in words is "seven billion, two hundred twenty-eight million, seven hundred twenty-two thousand, eight hundred seventy-three".