43978024147 has 2 divisors, whose sum is σ = 43978024148. Its totient is φ = 43978024146.

The previous prime is 43978024133. The next prime is 43978024163. The reversal of 43978024147 is 74142087934.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43978024147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43978024147.

It is not a weakly prime, because it can be changed into another prime (43978024177) 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, 21989012073 + 21989012074.

It is an arithmetic number, because the mean of its divisors is an integer number (21989012074).

Almost surely, 2^43978024147 is an apocalyptic number.

43978024147 is a deficient number, since it is larger than the sum of its proper divisors (1).

43978024147 is an equidigital number, since it uses as much as digits as its factorization.

43978024147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 43978024147 in words is "forty-three billion, nine hundred seventy-eight million, twenty-four thousand, one hundred forty-seven".