74435554213 has 2 divisors, whose sum is σ = 74435554214. Its totient is φ = 74435554212.

The previous prime is 74435554201. The next prime is 74435554253. The reversal of 74435554213 is 31245553447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56816443044 + 17619111169 = 238362^2 + 132737^2 .

It is a cyclic number.

It is not a de Polignac number, because 74435554213 - 2⁹ = 74435553701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74435554213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74435554253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37217777106 + 37217777107.

It is an arithmetic number, because the mean of its divisors is an integer number (37217777107).

Almost surely, 2^74435554213 is an apocalyptic number.

It is an amenable number.

74435554213 is a deficient number, since it is larger than the sum of its proper divisors (1).

74435554213 is an equidigital number, since it uses as much as digits as its factorization.

74435554213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008000, while the sum is 43.

The spelling of 74435554213 in words is "seventy-four billion, four hundred thirty-five million, five hundred fifty-four thousand, two hundred thirteen".