74337938249 has 8 divisors (see below), whose sum is σ = 81424922760. Its totient is φ = 67552527616.

The previous prime is 74337938243. The next prime is 74337938251. The reversal of 74337938249 is 94283973347.

It can be written as a sum of positive squares in 4 ways, for example, as 11101783225 + 63236155024 = 105365^2 + 251468^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-74337938249 is a prime.

It is a super-2 number, since 2×74337938249² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74337938243) 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, 75392954 + ... + 75393939.

It is an arithmetic number, because the mean of its divisors is an integer number (10178115345).

Almost surely, 2^74337938249 is an apocalyptic number.

It is an amenable number.

74337938249 is a deficient number, since it is larger than the sum of its proper divisors (7086984511).

74337938249 is a wasteful number, since it uses less digits than its factorization.

74337938249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150786939.

The product of its digits is 27433728, while the sum is 59.

The spelling of 74337938249 in words is "seventy-four billion, three hundred thirty-seven million, nine hundred thirty-eight thousand, two hundred forty-nine".