43138458787 has 8 divisors (see below), whose sum is σ = 43186576160. Its totient is φ = 43090367040.

The previous prime is 43138458733. The next prime is 43138458799. The reversal of 43138458787 is 78785483134.

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

It is a cyclic number.

It is not a de Polignac number, because 43138458787 - 2⁷ = 43138458659 is a prime.

It is a super-2 number, since 2×43138458787² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43138450787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7347289 + ... + 7353157.

It is an arithmetic number, because the mean of its divisors is an integer number (5398322020).

Almost surely, 2^43138458787 is an apocalyptic number.

43138458787 is a deficient number, since it is larger than the sum of its proper divisors (48117373).

43138458787 is a wasteful number, since it uses less digits than its factorization.

43138458787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813.

The product of its digits is 18063360, while the sum is 58.

The spelling of 43138458787 in words is "forty-three billion, one hundred thirty-eight million, four hundred fifty-eight thousand, seven hundred eighty-seven".