7122856401424 has 45 divisors (see below), whose sum is σ = 14066952087783. Its totient is φ = 3493953879936.

The previous prime is 7122856401373. The next prime is 7122856401431. The reversal of 7122856401424 is 4241046582217.

It is a happy number.

The square root of 7122856401424 is 2668868.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 491036547600 + 6631819853824 = 700740^2 + 2575232^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 565793722 + ... + 565806310.

Almost surely, 2^{7122856401424} is an apocalyptic number.

7122856401424 is the 2668868-th square number.

It is an amenable number.

7122856401424 is a deficient number, since it is larger than the sum of its proper divisors (6944095686359).

7122856401424 is an frugal number, since it uses more digits than its factorization.

7122856401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25292 (or 12644 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 7122856401424 in words is "seven trillion, one hundred twenty-two billion, eight hundred fifty-six million, four hundred one thousand, four hundred twenty-four".