74078481439 has 2 divisors, whose sum is σ = 74078481440. Its totient is φ = 74078481438.

The previous prime is 74078481413. The next prime is 74078481467. The reversal of 74078481439 is 93418487047.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (93418487047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74078481439 - 2²⁵ = 74044927007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74078481439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74078481739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37039240719 + 37039240720.

It is an arithmetic number, because the mean of its divisors is an integer number (37039240720).

Almost surely, 2^74078481439 is an apocalyptic number.

74078481439 is a deficient number, since it is larger than the sum of its proper divisors (1).

74078481439 is an equidigital number, since it uses as much as digits as its factorization.

74078481439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 74078481439 in words is "seventy-four billion, seventy-eight million, four hundred eighty-one thousand, four hundred thirty-nine".