74725533973 has 2 divisors, whose sum is σ = 74725533974. Its totient is φ = 74725533972.

The previous prime is 74725533947. The next prime is 74725534021. The reversal of 74725533973 is 37933552747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41096209284 + 33629324689 = 202722^2 + 183383^2 .

It is a cyclic number.

It is not a de Polignac number, because 74725533973 - 2¹³ = 74725525781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74725533473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37362766986 + 37362766987.

It is an arithmetic number, because the mean of its divisors is an integer number (37362766987).

Almost surely, 2^74725533973 is an apocalyptic number.

It is an amenable number.

74725533973 is a deficient number, since it is larger than the sum of its proper divisors (1).

74725533973 is an equidigital number, since it uses as much as digits as its factorization.

74725533973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16669800, while the sum is 55.

The spelling of 74725533973 in words is "seventy-four billion, seven hundred twenty-five million, five hundred thirty-three thousand, nine hundred seventy-three".