43264972019 has 2 divisors, whose sum is σ = 43264972020. Its totient is φ = 43264972018.

The previous prime is 43264972007. The next prime is 43264972027. The reversal of 43264972019 is 91027946234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43264972019 - 2¹² = 43264967923 is a prime.

It is a super-2 number, since 2×43264972019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43264972039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21632486009 + 21632486010.

It is an arithmetic number, because the mean of its divisors is an integer number (21632486010).

Almost surely, 2^43264972019 is an apocalyptic number.

43264972019 is a deficient number, since it is larger than the sum of its proper divisors (1).

43264972019 is an equidigital number, since it uses as much as digits as its factorization.

43264972019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 43264972019 in words is "forty-three billion, two hundred sixty-four million, nine hundred seventy-two thousand, nineteen".