9199905124990 has 16 divisors (see below), whose sum is σ = 16638311831760. Its totient is φ = 3662521470720.

The previous prime is 9199905124933. The next prime is 9199905125017. The reversal of 9199905124990 is 994215099919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180070195 + ... + 2180074414.

It is an arithmetic number, because the mean of its divisors is an integer number (1039894489485).

Almost surely, 2^{9199905124990} is an apocalyptic number.

9199905124990 is a deficient number, since it is larger than the sum of its proper divisors (7438406706770).

9199905124990 is a wasteful number, since it uses less digits than its factorization.

9199905124990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360144827.

The product of its (nonzero) digits is 21257640, while the sum is 67.

The spelling of 9199905124990 in words is "nine trillion, one hundred ninety-nine billion, nine hundred five million, one hundred twenty-four thousand, nine hundred ninety".