43238580537 has 4 divisors (see below), whose sum is σ = 57651440720. Its totient is φ = 28825720356.

The previous prime is 43238580533. The next prime is 43238580547. The reversal of 43238580537 is 73508583234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43238580537 - 2² = 43238580533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43238580533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7206430087 + ... + 7206430092.

It is an arithmetic number, because the mean of its divisors is an integer number (14412860180).

Almost surely, 2^43238580537 is an apocalyptic number.

It is an amenable number.

43238580537 is a deficient number, since it is larger than the sum of its proper divisors (14412860183).

43238580537 is a wasteful number, since it uses less digits than its factorization.

43238580537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412860182.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 43238580537 in words is "forty-three billion, two hundred thirty-eight million, five hundred eighty thousand, five hundred thirty-seven".