43136843485 has 8 divisors (see below), whose sum is σ = 51781252536. Its totient is φ = 34498114560.

The previous prime is 43136843479. The next prime is 43136843513. The reversal of 43136843485 is 58434863134.

It can be written as a sum of positive squares in 4 ways, for example, as 25581123481 + 17555720004 = 159941^2 + 132498^2 .

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

It is not a de Polignac number, because 43136843485 - 2⁷ = 43136843357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403304 + ... + 1433713.

It is an arithmetic number, because the mean of its divisors is an integer number (6472656567).

Almost surely, 2^43136843485 is an apocalyptic number.

It is an amenable number.

43136843485 is a deficient number, since it is larger than the sum of its proper divisors (8644409051).

43136843485 is a wasteful number, since it uses less digits than its factorization.

43136843485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840063.

The product of its digits is 3317760, while the sum is 49.

The spelling of 43136843485 in words is "forty-three billion, one hundred thirty-six million, eight hundred forty-three thousand, four hundred eighty-five".