53173274861 has 32 divisors (see below), whose sum is σ = 64535298048. Its totient is φ = 42853561920.

The previous prime is 53173274821. The next prime is 53173274893. The reversal of 53173274861 is 16847237135.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53173274861 - 2³⁰ = 52099533037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53173274821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162160 + ... + 1207046.

It is an arithmetic number, because the mean of its divisors is an integer number (2016728064).

Almost surely, 2^53173274861 is an apocalyptic number.

It is an amenable number.

53173274861 is a deficient number, since it is larger than the sum of its proper divisors (11362023187).

53173274861 is a wasteful number, since it uses less digits than its factorization.

53173274861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45081.

The product of its digits is 846720, while the sum is 47.

The spelling of 53173274861 in words is "fifty-three billion, one hundred seventy-three million, two hundred seventy-four thousand, eight hundred sixty-one".