74206705487 has 2 divisors, whose sum is σ = 74206705488. Its totient is φ = 74206705486.

The previous prime is 74206705429. The next prime is 74206705511. The reversal of 74206705487 is 78450760247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74206705487 - 2⁸ = 74206705231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74206705427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37103352743 + 37103352744.

It is an arithmetic number, because the mean of its divisors is an integer number (37103352744).

Almost surely, 2^74206705487 is an apocalyptic number.

74206705487 is a deficient number, since it is larger than the sum of its proper divisors (1).

74206705487 is an equidigital number, since it uses as much as digits as its factorization.

74206705487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 74206705487 in words is "seventy-four billion, two hundred six million, seven hundred five thousand, four hundred eighty-seven".