43091255399 has 8 divisors (see below), whose sum is σ = 43860498000. Its totient is φ = 42323308992.

The previous prime is 43091255381. The next prime is 43091255443. The reversal of 43091255399 is 99355219034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43091255399 - 2¹² = 43091251303 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 (43091255099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256844 + ... + 390065.

It is an arithmetic number, because the mean of its divisors is an integer number (5482562250).

Almost surely, 2^43091255399 is an apocalyptic number.

43091255399 is a deficient number, since it is larger than the sum of its proper divisors (769242601).

43091255399 is a wasteful number, since it uses less digits than its factorization.

43091255399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648097.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 43091255399 in words is "forty-three billion, ninety-one million, two hundred fifty-five thousand, three hundred ninety-nine".