99789241241 has 4 divisors (see below), whose sum is σ = 101194723584. Its totient is φ = 98383758900.

The previous prime is 99789241219. The next prime is 99789241243. The reversal of 99789241241 is 14214298799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14214298799 = 109 ⋅130406411.

It is a cyclic number.

It is not a de Polignac number, because 99789241241 - 2¹⁸ = 99788979097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99789241243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702741065 + ... + 702741206.

It is an arithmetic number, because the mean of its divisors is an integer number (25298680896).

Almost surely, 2^99789241241 is an apocalyptic number.

It is an amenable number.

99789241241 is a deficient number, since it is larger than the sum of its proper divisors (1405482343).

99789241241 is a wasteful number, since it uses less digits than its factorization.

99789241241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405482342.

The product of its digits is 2612736, while the sum is 56.

The spelling of 99789241241 in words is "ninety-nine billion, seven hundred eighty-nine million, two hundred forty-one thousand, two hundred forty-one".