43138364269 has 96 divisors (see below), whose sum is σ = 60897384576. Its totient is φ = 30015982080.

The previous prime is 43138364267. The next prime is 43138364273. The reversal of 43138364269 is 96246383134.

It is not a de Polignac number, because 43138364269 - 2¹ = 43138364267 is a prime.

It is a super-2 number, since 2×43138364269² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43138364267) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58851427 + ... + 58852159.

It is an arithmetic number, because the mean of its divisors is an integer number (634347756).

Almost surely, 2^43138364269 is an apocalyptic number.

43138364269 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

43138364269 is a deficient number, since it is larger than the sum of its proper divisors (17759020307).

43138364269 is a wasteful number, since it uses less digits than its factorization.

43138364269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1028 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The spelling of 43138364269 in words is "forty-three billion, one hundred thirty-eight million, three hundred sixty-four thousand, two hundred sixty-nine".