548458443121 has 2 divisors, whose sum is σ = 548458443122. Its totient is φ = 548458443120.

The previous prime is 548458443107. The next prime is 548458443139. The reversal of 548458443121 is 121344854845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399504900096 + 148953543025 = 632064^2 + 385945^2 .

It is a cyclic number.

It is not a de Polignac number, because 548458443121 - 2⁷ = 548458442993 is a prime.

It is a super-2 number, since 2×548458443121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (548458443151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274229221560 + 274229221561.

It is an arithmetic number, because the mean of its divisors is an integer number (274229221561).

Almost surely, 2^548458443121 is an apocalyptic number.

It is an amenable number.

548458443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

548458443121 is an equidigital number, since it uses as much as digits as its factorization.

548458443121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2457600, while the sum is 49.

The spelling of 548458443121 in words is "five hundred forty-eight billion, four hundred fifty-eight million, four hundred forty-three thousand, one hundred twenty-one".