74268367849 has 4 divisors (see below), whose sum is σ = 79981319236. Its totient is φ = 68555416464.

The previous prime is 74268367841. The next prime is 74268367861. The reversal of 74268367849 is 94876386247.

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 48860007849 + 25408360000 = 221043^2 + 159400^2 .

It is a cyclic number.

It is not a de Polignac number, because 74268367849 - 2³ = 74268367841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74268367841) 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, 2856475674 + ... + 2856475699.

It is an arithmetic number, because the mean of its divisors is an integer number (19995329809).

Almost surely, 2^74268367849 is an apocalyptic number.

It is an amenable number.

74268367849 is a deficient number, since it is larger than the sum of its proper divisors (5712951387).

74268367849 is a wasteful number, since it uses less digits than its factorization.

74268367849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712951386.

The product of its digits is 97542144, while the sum is 64.

The spelling of 74268367849 in words is "seventy-four billion, two hundred sixty-eight million, three hundred sixty-seven thousand, eight hundred forty-nine".