43450409479 has 2 divisors, whose sum is σ = 43450409480. Its totient is φ = 43450409478.

The previous prime is 43450409417. The next prime is 43450409537. The reversal of 43450409479 is 97490405434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43450409479 - 2¹³ = 43450401287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43450499479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21725204739 + 21725204740.

It is an arithmetic number, because the mean of its divisors is an integer number (21725204740).

Almost surely, 2^43450409479 is an apocalyptic number.

43450409479 is a deficient number, since it is larger than the sum of its proper divisors (1).

43450409479 is an equidigital number, since it uses as much as digits as its factorization.

43450409479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 49.

It can be divided in two parts, 43450 and 409479, that added together give a square (452929 = 673²).

The spelling of 43450409479 in words is "forty-three billion, four hundred fifty million, four hundred nine thousand, four hundred seventy-nine".