74473872079 has 2 divisors, whose sum is σ = 74473872080. Its totient is φ = 74473872078.

The previous prime is 74473872073. The next prime is 74473872127. The reversal of 74473872079 is 97027837447.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74473872079 - 2³ = 74473872071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74473872071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37236936039 + 37236936040.

It is an arithmetic number, because the mean of its divisors is an integer number (37236936040).

Almost surely, 2^74473872079 is an apocalyptic number.

74473872079 is a deficient number, since it is larger than the sum of its proper divisors (1).

74473872079 is an equidigital number, since it uses as much as digits as its factorization.

74473872079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16595712, while the sum is 58.

The spelling of 74473872079 in words is "seventy-four billion, four hundred seventy-three million, eight hundred seventy-two thousand, seventy-nine".