7973973505 has 16 divisors (see below), whose sum is σ = 10175904720. Its totient is φ = 5977700352.

The previous prime is 7973973503. The next prime is 7973973551. The reversal of 7973973505 is 5053793797.

7973973505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10909809 + 7963063696 = 3303^2 + 89236^2 .

It is a cyclic number.

It is not a de Polignac number, because 7973973505 - 2¹ = 7973973503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7973973503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185364 + ... + 224293.

It is an arithmetic number, because the mean of its divisors is an integer number (635994045).

Almost surely, 2^7973973505 is an apocalyptic number.

It is an amenable number.

7973973505 is a deficient number, since it is larger than the sum of its proper divisors (2201931215).

7973973505 is a wasteful number, since it uses less digits than its factorization.

7973973505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409908.

The product of its (nonzero) digits is 6251175, while the sum is 55.

The square root of 7973973505 is about 89297.1080438779. The cubic root of 7973973505 is about 1997.8287691479.

The spelling of 7973973505 in words is "seven billion, nine hundred seventy-three million, nine hundred seventy-three thousand, five hundred five".