9623313945 has 160 divisors (see below), whose sum is σ = 20208587520. Its totient is φ = 4308215040.

The previous prime is 9623313941. The next prime is 9623313991. The reversal of 9623313945 is 5493133269.

9623313945 is a `hidden beast` number, since 9 + 623 + 3 + 13 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 9623313945 - 2² = 9623313941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9623313945.

It is not an unprimeable number, because it can be changed into a prime (9623313941) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 42023091 + ... + 42023319.

It is an arithmetic number, because the mean of its divisors is an integer number (126303672).

Almost surely, 2^9623313945 is an apocalyptic number.

It is an amenable number.

9623313945 is an abundant number, since it is smaller than the sum of its proper divisors (10585273575).

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

9623313945 is an frugal number, since it uses more digits than its factorization.

9623313945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 305 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 9623313945 is about 98098.4910434406. The cubic root of 9623313945 is about 2127.0362171835.

The spelling of 9623313945 in words is "nine billion, six hundred twenty-three million, three hundred thirteen thousand, nine hundred forty-five".