43129879453 has 2 divisors, whose sum is σ = 43129879454. Its totient is φ = 43129879452.

The previous prime is 43129879447. The next prime is 43129879489. The reversal of 43129879453 is 35497892134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22128942564 + 21000936889 = 148758^2 + 144917^2 .

It is a cyclic number.

It is not a de Polignac number, because 43129879453 - 2⁹ = 43129878941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43129879394 and 43129879403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43129879433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21564939726 + 21564939727.

It is an arithmetic number, because the mean of its divisors is an integer number (21564939727).

Almost surely, 2^43129879453 is an apocalyptic number.

It is an amenable number.

43129879453 is a deficient number, since it is larger than the sum of its proper divisors (1).

43129879453 is an equidigital number, since it uses as much as digits as its factorization.

43129879453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 55.

The spelling of 43129879453 in words is "forty-three billion, one hundred twenty-nine million, eight hundred seventy-nine thousand, four hundred fifty-three".