9920956009259 has 16 divisors (see below), whose sum is σ = 10103318840832. Its totient is φ = 9740103938208.

The previous prime is 9920956009247. The next prime is 9920956009273. The reversal of 9920956009259 is 9529006590299.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9920956009259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9920956009195 and 9920956009204.

It is not an unprimeable number, because it can be changed into a prime (9920956069259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123114209 + ... + 123194765.

It is an arithmetic number, because the mean of its divisors is an integer number (631457427552).

Almost surely, 2^{9920956009259} is an apocalyptic number.

9920956009259 is a deficient number, since it is larger than the sum of its proper divisors (182362831573).

9920956009259 is a wasteful number, since it uses less digits than its factorization.

9920956009259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89906.

The product of its (nonzero) digits is 35429400, while the sum is 65.

The spelling of 9920956009259 in words is "nine trillion, nine hundred twenty billion, nine hundred fifty-six million, nine thousand, two hundred fifty-nine".