43451213479 has 2 divisors, whose sum is σ = 43451213480. Its totient is φ = 43451213478.

The previous prime is 43451213447. The next prime is 43451213483. The reversal of 43451213479 is 97431215434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43451213479 - 2⁵ = 43451213447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43451213419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21725606739 + 21725606740.

It is an arithmetic number, because the mean of its divisors is an integer number (21725606740).

Almost surely, 2^43451213479 is an apocalyptic number.

43451213479 is a deficient number, since it is larger than the sum of its proper divisors (1).

43451213479 is an equidigital number, since it uses as much as digits as its factorization.

43451213479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The spelling of 43451213479 in words is "forty-three billion, four hundred fifty-one million, two hundred thirteen thousand, four hundred seventy-nine".