945945945 has 40 divisors (see below), whose sum is σ = 1937943744. Its totient is φ = 432431136.

The previous prime is 945945941. The next prime is 945946007. The reversal of 945945945 is 549549549.

945945945 is a `hidden beast` number, since 9 + 4 + 594 + 5 + 9 + 45 = 666.

It is not a de Polignac number, because 945945945 - 2² = 945945941 is a prime.

945945945 is a modest number, since divided by 945945 gives 945 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 945945891 and 945945900.

It is not an unprimeable number, because it can be changed into a prime (945945941) by changing a digit.

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 in 39 ways as a sum of consecutive naturals, for example, 163999 + ... + 169668.

Almost surely, 2^945945945 is an apocalyptic number.

It is an amenable number.

945945945 is an abundant number, since it is smaller than the sum of its proper divisors (991997799).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

945945945 is a wasteful number, since it uses less digits than its factorization.

945945945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333691 (or 333682 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 945945945 is about 30756.2342460842. The cubic root of 945945945 is about 981.6472176012.

The spelling of 945945945 in words is "nine hundred forty-five million, nine hundred forty-five thousand, nine hundred forty-five".