9090920002 has 4 divisors (see below), whose sum is σ = 13636380006. Its totient is φ = 4545460000.

The previous prime is 9090919997. The next prime is 9090920011. The reversal of 9090920002 is 2000290909.

9090920002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000290909 = 2731 ⋅732439.

It can be written as a sum of positive squares in only one way, i.e., 5740941361 + 3349978641 = 75769^2 + 57879^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 2272729999 + ... + 2272730002.

Almost surely, 2^9090920002 is an apocalyptic number.

9090920002 is a deficient number, since it is larger than the sum of its proper divisors (4545460004).

9090920002 is a wasteful number, since it uses less digits than its factorization.

9090920002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545460003.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9090920002 is about 95346.3161427855. The cubic root of 9090920002 is about 2087.0648574016.

The spelling of 9090920002 in words is "nine billion, ninety million, nine hundred twenty thousand, two".