43479497434 has 4 divisors (see below), whose sum is σ = 65219246154. Its totient is φ = 21739748716.

The previous prime is 43479497389. The next prime is 43479497437.

43479497434 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 43223657409 + 255840025 = 207903^2 + 15995^2 .

It is a super-2 number, since 2×43479497434² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (43479497437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10869874357 + ... + 10869874360.

Almost surely, 2^43479497434 is an apocalyptic number.

43479497434 is a deficient number, since it is larger than the sum of its proper divisors (21739748720).

43479497434 is a wasteful number, since it uses less digits than its factorization.

43479497434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21739748719.

The product of its digits is 36578304, while the sum is 58.

The spelling of 43479497434 in words is "forty-three billion, four hundred seventy-nine million, four hundred ninety-seven thousand, four hundred thirty-four".