43960518617 has 4 divisors (see below), whose sum is σ = 43961603556. Its totient is φ = 43959433680.

The previous prime is 43960518607. The next prime is 43960518647. The reversal of 43960518617 is 71681506934.

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 17293302016 + 26667216601 = 131504^2 + 163301^2 .

It is a cyclic number.

It is not a de Polignac number, because 43960518617 - 2²⁰ = 43959470041 is a prime.

It is a super-3 number, since 3×43960518617³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43960518607) 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, 479234 + ... + 563547.

It is an arithmetic number, because the mean of its divisors is an integer number (10990400889).

Almost surely, 2^43960518617 is an apocalyptic number.

It is an amenable number.

43960518617 is a deficient number, since it is larger than the sum of its proper divisors (1084939).

43960518617 is a wasteful number, since it uses less digits than its factorization.

43960518617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084938.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 43960518617 in words is "forty-three billion, nine hundred sixty million, five hundred eighteen thousand, six hundred seventeen".