990935605907 has 8 divisors (see below), whose sum is σ = 1068582419520. Its totient is φ = 913491792000.

The previous prime is 990935605901. The next prime is 990935605909. The reversal of 990935605907 is 709506539099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990935605907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 990935605907.

It is not an unprimeable number, because it can be changed into a prime (990935605901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50739782 + ... + 50759307.

It is an arithmetic number, because the mean of its divisors is an integer number (133572802440).

Almost surely, 2^990935605907 is an apocalyptic number.

990935605907 is a deficient number, since it is larger than the sum of its proper divisors (77646813613).

990935605907 is a wasteful number, since it uses less digits than its factorization.

990935605907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101499853.

The product of its (nonzero) digits is 20667150, while the sum is 62.

The spelling of 990935605907 in words is "nine hundred ninety billion, nine hundred thirty-five million, six hundred five thousand, nine hundred seven".