43407670387 has 2 divisors, whose sum is σ = 43407670388. Its totient is φ = 43407670386.

The previous prime is 43407670357. The next prime is 43407670399. The reversal of 43407670387 is 78307670434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43407670387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43407670387.

It is not a weakly prime, because it can be changed into another prime (43407670357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21703835193 + 21703835194.

It is an arithmetic number, because the mean of its divisors is an integer number (21703835194).

Almost surely, 2^43407670387 is an apocalyptic number.

43407670387 is a deficient number, since it is larger than the sum of its proper divisors (1).

43407670387 is an equidigital number, since it uses as much as digits as its factorization.

43407670387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 49.

The spelling of 43407670387 in words is "forty-three billion, four hundred seven million, six hundred seventy thousand, three hundred eighty-seven".