43703268137 has 4 divisors (see below), whose sum is σ = 43815616260. Its totient is φ = 43590920016.

The previous prime is 43703268113. The next prime is 43703268149. The reversal of 43703268137 is 73186230734.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5125987216 + 38577280921 = 71596^2 + 196411^2 .

It is a cyclic number.

It is not a de Polignac number, because 43703268137 - 2⁶ = 43703268073 is a prime.

It is a super-3 number, since 3×43703268137³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43703268107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56173478 + ... + 56174255.

It is an arithmetic number, because the mean of its divisors is an integer number (10953904065).

Almost surely, 2^43703268137 is an apocalyptic number.

It is an amenable number.

43703268137 is a deficient number, since it is larger than the sum of its proper divisors (112348123).

43703268137 is a wasteful number, since it uses less digits than its factorization.

43703268137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112348122.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 43703268137 in words is "forty-three billion, seven hundred three million, two hundred sixty-eight thousand, one hundred thirty-seven".