99910149389 has 4 divisors (see below), whose sum is σ = 99910989024. Its totient is φ = 99909309756.

The previous prime is 99910149377. The next prime is 99910149407. The reversal of 99910149389 is 98394101999.

It is a happy number.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98394101999 = 941 ⋅104563339.

It is a cyclic number.

It is not a de Polignac number, because 99910149389 - 2⁸ = 99910149133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99910146389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204527 + ... + 491580.

It is an arithmetic number, because the mean of its divisors is an integer number (24977747256).

Almost surely, 2^99910149389 is an apocalyptic number.

It is an amenable number.

99910149389 is a deficient number, since it is larger than the sum of its proper divisors (839635).

99910149389 is a wasteful number, since it uses less digits than its factorization.

99910149389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839634.

The product of its (nonzero) digits is 5668704, while the sum is 62.

The spelling of 99910149389 in words is "ninety-nine billion, nine hundred ten million, one hundred forty-nine thousand, three hundred eighty-nine".