3742231220545 has 4 divisors (see below), whose sum is σ = 4490677464660. Its totient is φ = 2993784976432.

The previous prime is 3742231220531. The next prime is 3742231220551. The reversal of 3742231220545 is 5450221322473.

3742231220545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 554192402481 + 3188038818064 = 744441^2 + 1785508^2 .

It is a cyclic number.

It is not a de Polignac number, because 3742231220545 - 2⁷ = 3742231220417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3742231220498 and 3742231220507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374223122050 + ... + 374223122059.

It is an arithmetic number, because the mean of its divisors is an integer number (1122669366165).

Almost surely, 2^{3742231220545} is an apocalyptic number.

It is an amenable number.

3742231220545 is a deficient number, since it is larger than the sum of its proper divisors (748446244115).

3742231220545 is an equidigital number, since it uses as much as digits as its factorization.

3742231220545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748446244114.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 3742231220545 in words is "three trillion, seven hundred forty-two billion, two hundred thirty-one million, two hundred twenty thousand, five hundred forty-five".