20614512449 has 2 divisors, whose sum is σ = 20614512450. Its totient is φ = 20614512448.

The previous prime is 20614512397. The next prime is 20614512487. The reversal of 20614512449 is 94421541602.

It is an a-pointer prime, because the next prime (20614512487) can be obtained adding 20614512449 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20590815025 + 23697424 = 143495^2 + 4868^2 .

It is a cyclic number.

It is not a de Polignac number, because 20614512449 - 2²⁴ = 20597735233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20614512049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10307256224 + 10307256225.

It is an arithmetic number, because the mean of its divisors is an integer number (10307256225).

Almost surely, 2^20614512449 is an apocalyptic number.

It is an amenable number.

20614512449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20614512449 is an equidigital number, since it uses as much as digits as its factorization.

20614512449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 20614512449 in words is "twenty billion, six hundred fourteen million, five hundred twelve thousand, four hundred forty-nine".