43138458788 has 6 divisors (see below), whose sum is σ = 75492302886. Its totient is φ = 21569229392.

The previous prime is 43138458733. The next prime is 43138458799. The reversal of 43138458788 is 88785483134.

It can be written as a sum of positive squares in only one way, i.e., 43134305344 + 4153444 = 207688^2 + 2038^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5392307345 + ... + 5392307352.

It is an arithmetic number, because the mean of its divisors is an integer number (12582050481).

Almost surely, 2^43138458788 is an apocalyptic number.

It is an amenable number.

43138458788 is a deficient number, since it is larger than the sum of its proper divisors (32353844098).

43138458788 is a wasteful number, since it uses less digits than its factorization.

43138458788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10784614701 (or 10784614699 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 59.

The spelling of 43138458788 in words is "forty-three billion, one hundred thirty-eight million, four hundred fifty-eight thousand, seven hundred eighty-eight".