43648562731379 has 4 divisors (see below), whose sum is σ = 43767496145184. Its totient is φ = 43529629317576.

The previous prime is 43648562731303. The next prime is 43648562731399. The reversal of 43648562731379 is 97313726584634.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43648562731379 - 2¹⁶ = 43648562665843 is a prime.

It is a super-2 number, since 2×43648562731379² (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 (43648562731399) 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, 59466706352 + ... + 59466707085.

It is an arithmetic number, because the mean of its divisors is an integer number (10941874036296).

Almost surely, 2^{43648562731379} is an apocalyptic number.

43648562731379 is a deficient number, since it is larger than the sum of its proper divisors (118933413805).

43648562731379 is a wasteful number, since it uses less digits than its factorization.

43648562731379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118933413804.

The product of its digits is 548674560, while the sum is 68.

The spelling of 43648562731379 in words is "forty-three trillion, six hundred forty-eight billion, five hundred sixty-two million, seven hundred thirty-one thousand, three hundred seventy-nine".