90999099099909 has 192 divisors, whose sum is σ = 181454879563776. Its totient is φ = 42414503040000.

The previous prime is 90999099099877. The next prime is 90999099099919.

90999099099909 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 90999099099909 - 2⁵ = 90999099099877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90999099099919) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 99644454 + ... + 100553544.

It is an arithmetic number, because the mean of its divisors is an integer number (945077497728).

Almost surely, 2^{90999099099909} is an apocalyptic number.

90999099099909 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

90999099099909 is a deficient number, since it is larger than the sum of its proper divisors (90455780463867).

90999099099909 is a wasteful number, since it uses less digits than its factorization.

90999099099909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909440 (or 909437 counting only the distinct ones).

The product of its (nonzero) digits is 3486784401, while the sum is 90.

The spelling of 90999099099909 in words is "ninety trillion, nine hundred ninety-nine billion, ninety-nine million, ninety-nine thousand, nine hundred nine".