13453430049 has 20 divisors (see below), whose sum is σ = 20790106260. Its totient is φ = 8659677600.

The previous prime is 13453429993. The next prime is 13453430051. The reversal of 13453430049 is 94003435431.

13453430049 is a `hidden beast` number, since 1 + 345 + 3 + 4 + 300 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5116827024 + 8336603025 = 71532^2 + 91305^2 .

It is not a de Polignac number, because 13453430049 - 2¹⁷ = 13453298977 is a prime.

It is a super-2 number, since 2×13453430049² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13453429995 and 13453430022.

It is not an unprimeable number, because it can be changed into a prime (13453430449) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2861302 + ... + 2865999.

It is an arithmetic number, because the mean of its divisors is an integer number (1039505313).

Almost surely, 2^13453430049 is an apocalyptic number.

It is an amenable number.

13453430049 is a deficient number, since it is larger than the sum of its proper divisors (7336676211).

13453430049 is an equidigital number, since it uses as much as digits as its factorization.

13453430049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727342 (or 5727333 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 13453430049 in words is "thirteen billion, four hundred fifty-three million, four hundred thirty thousand, forty-nine".