43378295039 has 4 divisors (see below), whose sum is σ = 43380545760. Its totient is φ = 43376044320.

The previous prime is 43378294957. The next prime is 43378295057. The reversal of 43378295039 is 93059287334.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43378295039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43378295069) 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 in 3 ways as a sum of consecutive naturals, for example, 1096199 + ... + 1135080.

It is an arithmetic number, because the mean of its divisors is an integer number (10845136440).

Almost surely, 2^43378295039 is an apocalyptic number.

43378295039 is a deficient number, since it is larger than the sum of its proper divisors (2250721).

43378295039 is a wasteful number, since it uses less digits than its factorization.

43378295039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250720.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 43378295039 in words is "forty-three billion, three hundred seventy-eight million, two hundred ninety-five thousand, thirty-nine".