10009999946 has 4 divisors (see below), whose sum is σ = 15014999922. Its totient is φ = 5004999972.

The previous prime is 10009999859. The next prime is 10009999949. The reversal of 10009999946 is 64999990001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64999990001 = 31 ⋅2096773871.

It can be written as a sum of positive squares in only one way, i.e., 9204291721 + 805708225 = 95939^2 + 28385^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10009999891 and 10009999900.

It is not an unprimeable number, because it can be changed into a prime (10009999949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502499985 + ... + 2502499988.

Almost surely, 2^10009999946 is an apocalyptic number.

10009999946 is a deficient number, since it is larger than the sum of its proper divisors (5004999976).

10009999946 is an equidigital number, since it uses as much as digits as its factorization.

10009999946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004999975.

The product of its (nonzero) digits is 1417176, while the sum is 56.

The spelling of 10009999946 in words is "ten billion, nine million, nine hundred ninety-nine thousand, nine hundred forty-six".