5201973945 has 24 divisors (see below), whose sum is σ = 10304863296. Its totient is φ = 2378045088.

The previous prime is 5201973937. The next prime is 5201973949. The reversal of 5201973945 is 5493791025.

It is a happy number.

5201973945 is a `hidden beast` number, since 520 + 1 + 97 + 39 + 4 + 5 = 666.

It is not a de Polignac number, because 5201973945 - 2³ = 5201973937 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 5201973945.

It is not an unprimeable number, because it can be changed into a prime (5201973949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8256787 + ... + 8257416.

It is an arithmetic number, because the mean of its divisors is an integer number (429369304).

Almost surely, 2^5201973945 is an apocalyptic number.

It is an amenable number.

5201973945 is a deficient number, since it is larger than the sum of its proper divisors (5102889351).

5201973945 is a wasteful number, since it uses less digits than its factorization.

5201973945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514221 (or 16514218 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 5201973945 is about 72124.7110566136. The cubic root of 5201973945 is about 1732.6974019681.

The spelling of 5201973945 in words is "five billion, two hundred one million, nine hundred seventy-three thousand, nine hundred forty-five".