43749003971438 has 4 divisors (see below), whose sum is σ = 65623505957160. Its totient is φ = 21874501985718.

The previous prime is 43749003971401. The next prime is 43749003971441. The reversal of 43749003971438 is 83417930094734.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10937250992858 + ... + 10937250992861.

It is an arithmetic number, because the mean of its divisors is an integer number (16405876489290).

Almost surely, 2^{43749003971438} is an apocalyptic number.

43749003971438 is a deficient number, since it is larger than the sum of its proper divisors (21874501985722).

43749003971438 is a wasteful number, since it uses less digits than its factorization.

43749003971438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21874501985721.

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 43749003971438 in words is "forty-three trillion, seven hundred forty-nine billion, three million, nine hundred seventy-one thousand, four hundred thirty-eight".