7122925656 has 288 divisors, whose sum is σ = 25391059200. Its totient is φ = 1752243840.

The previous prime is 7122925639. The next prime is 7122925669. The reversal of 7122925656 is 6565292217.

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, 1999605 + ... + 2003163.

It is an arithmetic number, because the mean of its divisors is an integer number (88163400).

Almost surely, 2^7122925656 is an apocalyptic number.

7122925656 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7122925656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12695529600).

7122925656 is an abundant number, since it is smaller than the sum of its proper divisors (18268133544).

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

7122925656 is a wasteful number, since it uses less digits than its factorization.

7122925656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627 (or 3601 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 7122925656 is about 84397.4268328129. The cubic root of 7122925656 is about 1924.0638079757.

The spelling of 7122925656 in words is "seven billion, one hundred twenty-two million, nine hundred twenty-five thousand, six hundred fifty-six".