43749387307 has 12 divisors (see below), whose sum is σ = 47607794136. Its totient is φ = 40171592960.

The previous prime is 43749387271. The next prime is 43749387323. The reversal of 43749387307 is 70378394734.

It is not a de Polignac number, because 43749387307 - 2⁷ = 43749387179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43749387337) 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 11 ways as a sum of consecutive naturals, for example, 1834273 + ... + 1857970.

It is an arithmetic number, because the mean of its divisors is an integer number (3967316178).

Almost surely, 2^43749387307 is an apocalyptic number.

43749387307 is a deficient number, since it is larger than the sum of its proper divisors (3858406829).

43749387307 is a wasteful number, since it uses less digits than its factorization.

43749387307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692318 (or 3692301 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 55.

It can be divided in two parts, 437493 and 87307, that added together give a triangular number (524800 = T₁₀₂₄).

The spelling of 43749387307 in words is "forty-three billion, seven hundred forty-nine million, three hundred eighty-seven thousand, three hundred seven".