43873366461 has 4 divisors (see below), whose sum is σ = 58497821952. Its totient is φ = 29248910972.

The previous prime is 43873366409. The next prime is 43873366463. The reversal of 43873366461 is 16466337834.

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 not a de Polignac number, because 43873366461 - 2⁷ = 43873366333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43873366463) 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, 7312227741 + ... + 7312227746.

It is an arithmetic number, because the mean of its divisors is an integer number (14624455488).

Almost surely, 2^43873366461 is an apocalyptic number.

It is an amenable number.

43873366461 is a deficient number, since it is larger than the sum of its proper divisors (14624455491).

43873366461 is a wasteful number, since it uses less digits than its factorization.

43873366461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14624455490.

The product of its digits is 5225472, while the sum is 51.

The spelling of 43873366461 in words is "forty-three billion, eight hundred seventy-three million, three hundred sixty-six thousand, four hundred sixty-one".