89980254449 has 2 divisors, whose sum is σ = 89980254450. Its totient is φ = 89980254448.

The previous prime is 89980254421. The next prime is 89980254461. The reversal of 89980254449 is 94445208998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71427907600 + 18552346849 = 267260^2 + 136207^2 .

It is a cyclic number.

It is not a de Polignac number, because 89980254449 - 2²⁸ = 89711818993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89980254391 and 89980254400.

It is not a weakly prime, because it can be changed into another prime (89980257449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44990127224 + 44990127225.

It is an arithmetic number, because the mean of its divisors is an integer number (44990127225).

Almost surely, 2^89980254449 is an apocalyptic number.

It is an amenable number.

89980254449 is a deficient number, since it is larger than the sum of its proper divisors (1).

89980254449 is an equidigital number, since it uses as much as digits as its factorization.

89980254449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29859840, while the sum is 62.

The spelling of 89980254449 in words is "eighty-nine billion, nine hundred eighty million, two hundred fifty-four thousand, four hundred forty-nine".