43138764231 has 8 divisors (see below), whose sum is σ = 57520152960. Its totient is φ = 28758275832.

The previous prime is 43138764199. The next prime is 43138764233. The reversal of 43138764231 is 13246783134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43138764231 - 2⁵ = 43138764199 is a prime.

It is a super-2 number, since 2×43138764231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43138764233) 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 7 ways as a sum of consecutive naturals, for example, 103971 + ... + 311588.

It is an arithmetic number, because the mean of its divisors is an integer number (7190019120).

Almost surely, 2^43138764231 is an apocalyptic number.

43138764231 is a deficient number, since it is larger than the sum of its proper divisors (14381388729).

43138764231 is a wasteful number, since it uses less digits than its factorization.

43138764231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450165.

The product of its digits is 290304, while the sum is 42.

The spelling of 43138764231 in words is "forty-three billion, one hundred thirty-eight million, seven hundred sixty-four thousand, two hundred thirty-one".