74719081760399 has 16 divisors (see below), whose sum is σ = 78318970329600. Its totient is φ = 71148843005856.

The previous prime is 74719081760381. The next prime is 74719081760413. The reversal of 74719081760399 is 99306718091747.

It is a Cunningham number, because it is equal to 8644020²-1.

It is a cyclic number.

It is not a de Polignac number, because 74719081760399 - 2¹² = 74719081756303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74719081760339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4322012 + ... + 12966030.

It is an arithmetic number, because the mean of its divisors is an integer number (4894935645600).

Almost surely, 2^{74719081760399} is an apocalyptic number.

74719081760399 is a deficient number, since it is larger than the sum of its proper divisors (3599888569201).

74719081760399 is a wasteful number, since it uses less digits than its factorization.

74719081760399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645734.

The product of its (nonzero) digits is 144027072, while the sum is 71.

The spelling of 74719081760399 in words is "seventy-four trillion, seven hundred nineteen billion, eighty-one million, seven hundred sixty thousand, three hundred ninety-nine".