43640464613413 has 4 divisors (see below), whose sum is σ = 45537876118368. Its totient is φ = 41743053108460.

The previous prime is 43640464613287. The next prime is 43640464613429. The reversal of 43640464613413 is 31431646404634.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43640464613413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43640464613443) 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, 948705752443 + ... + 948705752488.

It is an arithmetic number, because the mean of its divisors is an integer number (11384469029592).

Almost surely, 2^{43640464613413} is an apocalyptic number.

It is an amenable number.

43640464613413 is a deficient number, since it is larger than the sum of its proper divisors (1897411504955).

43640464613413 is a wasteful number, since it uses less digits than its factorization.

43640464613413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897411504954.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 43640464613413 in words is "forty-three trillion, six hundred forty billion, four hundred sixty-four million, six hundred thirteen thousand, four hundred thirteen".