23403145473 has 6 divisors (see below), whose sum is σ = 33804543474. Its totient is φ = 15602096976.

The previous prime is 23403145433. The next prime is 23403145531. The reversal of 23403145473 is 37454130432.

23403145473 is a `hidden beast` number, since 2 + 3 + 40 + 3 + 145 + 473 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15536874609 + 7866270864 = 124647^2 + 88692^2 .

It is not a de Polignac number, because 23403145473 - 2³⁴ = 6223276289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23403145433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1300174740 + ... + 1300174757.

It is an arithmetic number, because the mean of its divisors is an integer number (5634090579).

Almost surely, 2^23403145473 is an apocalyptic number.

It is an amenable number.

23403145473 is a deficient number, since it is larger than the sum of its proper divisors (10401398001).

23403145473 is a wasteful number, since it uses less digits than its factorization.

23403145473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600349503 (or 2600349500 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 23403145473 in words is "twenty-three billion, four hundred three million, one hundred forty-five thousand, four hundred seventy-three".