3751942274449 has 4 divisors (see below), whose sum is σ = 3803338744036. Its totient is φ = 3700545804864.

The previous prime is 3751942274447. The next prime is 3751942274497. The reversal of 3751942274449 is 9444722491573.

It is a happy number.

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 2365982330625 + 1385959943824 = 1538175^2 + 1177268^2 .

It is a cyclic number.

It is not a de Polignac number, because 3751942274449 - 2¹ = 3751942274447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3751942274447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25698234684 + ... + 25698234829.

It is an arithmetic number, because the mean of its divisors is an integer number (950834686009).

Almost surely, 2^{3751942274449} is an apocalyptic number.

It is an amenable number.

3751942274449 is a deficient number, since it is larger than the sum of its proper divisors (51396469587).

3751942274449 is an equidigital number, since it uses as much as digits as its factorization.

3751942274449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51396469586.

The product of its digits is 60963840, while the sum is 61.

The spelling of 3751942274449 in words is "three trillion, seven hundred fifty-one billion, nine hundred forty-two million, two hundred seventy-four thousand, four hundred forty-nine".