9945437325 has 48 divisors (see below), whose sum is σ = 17434616256. Its totient is φ = 4985267200.

The previous prime is 9945437309. The next prime is 9945437389. The reversal of 9945437325 is 5237345499.

It is not a de Polignac number, because 9945437325 - 2⁴ = 9945437309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 980530 + ... + 990620.

It is an arithmetic number, because the mean of its divisors is an integer number (363221172).

Almost surely, 2^9945437325 is an apocalyptic number.

It is an amenable number.

9945437325 is a deficient number, since it is larger than the sum of its proper divisors (7489178931).

9945437325 is a wasteful number, since it uses less digits than its factorization.

9945437325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894 (or 10889 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 51.

The square root of 9945437325 is about 99726.8134706008. The cubic root of 9945437325 is about 2150.5091510945.

The spelling of 9945437325 in words is "nine billion, nine hundred forty-five million, four hundred thirty-seven thousand, three hundred twenty-five".