9945906052 has 6 divisors (see below), whose sum is σ = 17405335598. Its totient is φ = 4972953024.

The previous prime is 9945906043. The next prime is 9945906071. The reversal of 9945906052 is 2506095499.

It can be written as a sum of positive squares in only one way, i.e., 9419478916 + 526427136 = 97054^2 + 22944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9945905987 and 9945906005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243238253 + ... + 1243238260.

Almost surely, 2^9945906052 is an apocalyptic number.

It is an amenable number.

9945906052 is a deficient number, since it is larger than the sum of its proper divisors (7459429546).

9945906052 is a wasteful number, since it uses less digits than its factorization.

9945906052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486476517 (or 2486476515 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 9945906052 is about 99729.1634979458. The cubic root of 9945906052 is about 2150.5429349572.

The spelling of 9945906052 in words is "nine billion, nine hundred forty-five million, nine hundred six thousand, fifty-two".