7722052257942 has 144 divisors (see below), whose sum is σ = 18709708595760. Its totient is φ = 2299459536000.

The previous prime is 7722052257911. The next prime is 7722052258027. The reversal of 7722052257942 is 2497522502277.

7722052257942 is a `hidden beast` number, since 7 + 7 + 2 + 2 + 0 + 5 + 22 + 579 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 141998017 + ... + 142052387.

It is an arithmetic number, because the mean of its divisors is an integer number (129928531915).

Almost surely, 2^{7722052257942} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7722052257942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9354854297880).

7722052257942 is an abundant number, since it is smaller than the sum of its proper divisors (10987656337818).

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

7722052257942 is a wasteful number, since it uses less digits than its factorization.

7722052257942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55531 (or 55517 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 7722052257942 in words is "seven trillion, seven hundred twenty-two billion, fifty-two million, two hundred fifty-seven thousand, nine hundred forty-two".