43034623681 has 4 divisors (see below), whose sum is σ = 49182427072. Its totient is φ = 36886820292.

The previous prime is 43034623679. The next prime is 43034623691. The reversal of 43034623681 is 18632643034.

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 not a de Polignac number, because 43034623681 - 2¹ = 43034623679 is a prime.

It is a super-2 number, since 2×43034623681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43034623661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073901685 + ... + 3073901698.

It is an arithmetic number, because the mean of its divisors is an integer number (12295606768).

Almost surely, 2^43034623681 is an apocalyptic number.

It is an amenable number.

43034623681 is a deficient number, since it is larger than the sum of its proper divisors (6147803391).

43034623681 is an equidigital number, since it uses as much as digits as its factorization.

43034623681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147803390.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 43034623681 in words is "forty-three billion, thirty-four million, six hundred twenty-three thousand, six hundred eighty-one".