74465193613 has 8 divisors (see below), whose sum is σ = 77065712280. Its totient is φ = 71866858560.

The previous prime is 74465193611. The next prime is 74465193617. The reversal of 74465193613 is 31639156447.

74465193613 = 192957² + 192958².

It can be written as a sum of positive squares in 4 ways, for example, as 44262409 + 74420931204 = 6653^2 + 272802^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74465193613 - 2¹ = 74465193611 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 (74465193611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476358 + ... + 613063.

It is an arithmetic number, because the mean of its divisors is an integer number (9633214035).

Almost surely, 2^74465193613 is an apocalyptic number.

74465193613 is the 192958-th centered square number.

It is an amenable number.

74465193613 is a deficient number, since it is larger than the sum of its proper divisors (2600518667).

74465193613 is a wasteful number, since it uses less digits than its factorization.

74465193613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091807.

The product of its digits is 1632960, while the sum is 49.

The spelling of 74465193613 in words is "seventy-four billion, four hundred sixty-five million, one hundred ninety-three thousand, six hundred thirteen".