90999099910 has 32 divisors (see below), whose sum is σ = 173452389120. Its totient is φ = 34254769152.

The previous prime is 90999099899. The next prime is 90999099929. The reversal of 90999099910 is 1999099909.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931211 + ... + 1977769.

It is an arithmetic number, because the mean of its divisors is an integer number (5420387160).

Almost surely, 2^90999099910 is an apocalyptic number.

90999099910 is a deficient number, since it is larger than the sum of its proper divisors (82453289210).

90999099910 is a wasteful number, since it uses less digits than its factorization.

90999099910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58080.

The product of its (nonzero) digits is 4782969, while the sum is 64.

The spelling of 90999099910 in words is "ninety billion, nine hundred ninety-nine million, ninety-nine thousand, nine hundred ten".