7722045050172 has 12 divisors (see below), whose sum is σ = 18018105117096. Its totient is φ = 2574015016720.

The previous prime is 7722045050149. The next prime is 7722045050173. The reversal of 7722045050172 is 2710505402277.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7722045050173) 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, 321751877079 + ... + 321751877102.

It is an arithmetic number, because the mean of its divisors is an integer number (1501508759758).

Almost surely, 2^{7722045050172} is an apocalyptic number.

It is an amenable number.

7722045050172 is an abundant number, since it is smaller than the sum of its proper divisors (10296060066924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7722045050172 is a wasteful number, since it uses less digits than its factorization.

7722045050172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643503754188 (or 643503754186 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 7722045050172 in words is "seven trillion, seven hundred twenty-two billion, forty-five million, fifty thousand, one hundred seventy-two".