43693038064438 has 64 divisors (see below), whose sum is σ = 77613925662720. Its totient is φ = 18059792355072.

The previous prime is 43693038064411. The next prime is 43693038064439. The reversal of 43693038064438 is 83446083039634.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43693038064439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52859595 + ... + 53679817.

It is an arithmetic number, because the mean of its divisors is an integer number (1212717588480).

Almost surely, 2^{43693038064438} is an apocalyptic number.

43693038064438 is a deficient number, since it is larger than the sum of its proper divisors (33920887598282).

43693038064438 is a wasteful number, since it uses less digits than its factorization.

43693038064438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821461.

The product of its (nonzero) digits is 107495424, while the sum is 61.

The spelling of 43693038064438 in words is "forty-three trillion, six hundred ninety-three billion, thirty-eight million, sixty-four thousand, four hundred thirty-eight".