7224758027881 has 3 divisors (see below), whose sum is σ = 7224760715773. Its totient is φ = 7224755339990.

The previous prime is 7224758027833. The next prime is 7224758027891. The reversal of 7224758027881 is 1887208574227.

The square root of 7224758027881 is 2687891.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 7224758027881 - 2⁴¹ = 5025734772329 is a prime.

It is a super-2 number, since 2×7224758027881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7224758027891) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1343946 + ... + 4031836.

Almost surely, 2^{7224758027881} is an apocalyptic number.

7224758027881 is the 2687891-st square number.

7224758027881 is the 1343946-th centered octagonal number.

It is an amenable number.

7224758027881 is a deficient number, since it is larger than the sum of its proper divisors (2687892).

7224758027881 is an frugal number, since it uses more digits than its factorization.

7224758027881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375782 (or 2687891 counting only the distinct ones).

The product of its (nonzero) digits is 28098560, while the sum is 61.

The spelling of 7224758027881 in words is "seven trillion, two hundred twenty-four billion, seven hundred fifty-eight million, twenty-seven thousand, eight hundred eighty-one".