7224854792281 has 9 divisors (see below), whose sum is σ = 8404444808949. Its totient is φ = 6192716551644.

The previous prime is 7224854792219. The next prime is 7224854792371. The reversal of 7224854792281 is 1822974584227.

The square root of 7224854792281 is 2687909.

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

It is not a de Polignac number, because 7224854792281 - 2²³ = 7224846403673 is a prime.

It is a super-2 number, since 2×7224854792281² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7224854795281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18623370 + ... + 19007356.

Almost surely, 2^{7224854792281} is an apocalyptic number.

7224854792281 is the 2687909-th square number.

7224854792281 is the 1343955-th centered octagonal number.

It is an amenable number.

7224854792281 is a deficient number, since it is larger than the sum of its proper divisors (1179590016668).

7224854792281 is an frugal number, since it uses more digits than its factorization.

7224854792281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767988 (or 383994 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 61.

The spelling of 7224854792281 in words is "seven trillion, two hundred twenty-four billion, eight hundred fifty-four million, seven hundred ninety-two thousand, two hundred eighty-one".