74336663293 has 4 divisors (see below), whose sum is σ = 76899996540. Its totient is φ = 71773330048.

The previous prime is 74336663281. The next prime is 74336663299. The reversal of 74336663293 is 39236663347.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46219410169 + 28117253124 = 214987^2 + 167682^2 .

It is a cyclic number.

It is not a de Polignac number, because 74336663293 - 2¹³ = 74336655101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74336663293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74336663299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281666580 + ... + 1281666637.

It is an arithmetic number, because the mean of its divisors is an integer number (19224999135).

Almost surely, 2^74336663293 is an apocalyptic number.

It is an amenable number.

74336663293 is a deficient number, since it is larger than the sum of its proper divisors (2563333247).

74336663293 is a wasteful number, since it uses less digits than its factorization.

74336663293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563333246.

The product of its digits is 8817984, while the sum is 52.

The spelling of 74336663293 in words is "seventy-four billion, three hundred thirty-six million, six hundred sixty-three thousand, two hundred ninety-three".