7241479525981 has 2 divisors, whose sum is σ = 7241479525982. Its totient is φ = 7241479525980.

The previous prime is 7241479525967. The next prime is 7241479525993. The reversal of 7241479525981 is 1895259741427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5394981744100 + 1846497781881 = 2322710^2 + 1358859^2 .

It is a cyclic number.

It is not a de Polignac number, because 7241479525981 - 2¹⁷ = 7241479394909 is a prime.

It is a super-2 number, since 2×7241479525981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7241479525681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3620739762990 + 3620739762991.

It is an arithmetic number, because the mean of its divisors is an integer number (3620739762991).

Almost surely, 2^{7241479525981} is an apocalyptic number.

It is an amenable number.

7241479525981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7241479525981 is an equidigital number, since it uses as much as digits as its factorization.

7241479525981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 64.

The spelling of 7241479525981 in words is "seven trillion, two hundred forty-one billion, four hundred seventy-nine million, five hundred twenty-five thousand, nine hundred eighty-one".