3745523437 has 4 divisors (see below), whose sum is σ = 3787608060. Its totient is φ = 3703438816.

The previous prime is 3745523413. The next prime is 3745523443. The reversal of 3745523437 is 7343255473.

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 2663179236 + 1082344201 = 51606^2 + 32899^2 .

It is a cyclic number.

It is not a de Polignac number, because 3745523437 - 2¹⁹ = 3744999149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3745523393 and 3745523402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3745523477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21042178 + ... + 21042355.

It is an arithmetic number, because the mean of its divisors is an integer number (946902015).

Almost surely, 2^3745523437 is an apocalyptic number.

It is an amenable number.

3745523437 is a deficient number, since it is larger than the sum of its proper divisors (42084623).

3745523437 is an equidigital number, since it uses as much as digits as its factorization.

3745523437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42084622.

The product of its digits is 1058400, while the sum is 43.

The square root of 3745523437 is about 61200.6816710402. The cubic root of 3745523437 is about 1552.9977969479.

The spelling of 3745523437 in words is "three billion, seven hundred forty-five million, five hundred twenty-three thousand, four hundred thirty-seven".