4498129263521 has 2 divisors, whose sum is σ = 4498129263522. Its totient is φ = 4498129263520.

The previous prime is 4498129263487. The next prime is 4498129263533. The reversal of 4498129263521 is 1253629218944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2757144016225 + 1740985247296 = 1660465^2 + 1319464^2 .

It is a cyclic number.

It is not a de Polignac number, because 4498129263521 - 2¹⁴ = 4498129247137 is a prime.

It is a super-2 number, since 2×4498129263521² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4498129293521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2249064631760 + 2249064631761.

It is an arithmetic number, because the mean of its divisors is an integer number (2249064631761).

Almost surely, 2^{4498129263521} is an apocalyptic number.

It is an amenable number.

4498129263521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4498129263521 is an equidigital number, since it uses as much as digits as its factorization.

4498129263521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The spelling of 4498129263521 in words is "four trillion, four hundred ninety-eight billion, one hundred twenty-nine million, two hundred sixty-three thousand, five hundred twenty-one".