9912320002 has 64 divisors (see below), whose sum is σ = 16827360480. Its totient is φ = 4347592704.

The previous prime is 9912319997. The next prime is 9912320009. The reversal of 9912320002 is 2000232199.

It can be written as a sum of positive squares in 16 ways, for example, as 1437092281 + 8475227721 = 37909^2 + 92061^2 .

It is not an unprimeable number, because it can be changed into a prime (9912320009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22891978 + ... + 22892410.

Almost surely, 2^9912320002 is an apocalyptic number.

9912320002 is a deficient number, since it is larger than the sum of its proper divisors (6915040478).

9912320002 is a wasteful number, since it uses less digits than its factorization.

9912320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9912320002 is about 99560.6348011100. The cubic root of 9912320002 is about 2148.1195024122.

The spelling of 9912320002 in words is "nine billion, nine hundred twelve million, three hundred twenty thousand, two".