43705104038513 has 4 divisors (see below), whose sum is σ = 43860638216868. Its totient is φ = 43549569860160.

The previous prime is 43705104038507. The next prime is 43705104038633. The reversal of 43705104038513 is 31583040150734.

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 9420191208289 + 34284912830224 = 3069233^2 + 5855332^2 .

It is a cyclic number.

It is not a de Polignac number, because 43705104038513 - 2¹⁰ = 43705104037489 is a prime.

It is a super-2 number, since 2×43705104038513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43705104038213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77767088756 + ... + 77767089317.

It is an arithmetic number, because the mean of its divisors is an integer number (10965159554217).

Almost surely, 2^{43705104038513} is an apocalyptic number.

It is an amenable number.

43705104038513 is a deficient number, since it is larger than the sum of its proper divisors (155534178355).

43705104038513 is a wasteful number, since it uses less digits than its factorization.

43705104038513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155534178354.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 43705104038513 in words is "forty-three trillion, seven hundred five billion, one hundred four million, thirty-eight thousand, five hundred thirteen".