439949903539 has 16 divisors (see below), whose sum is σ = 467866582560. Its totient is φ = 412512480000.

The previous prime is 439949903537. The next prime is 439949903543. The reversal of 439949903539 is 935309949934.

It is a cyclic number.

It is not a de Polignac number, because 439949903539 - 2¹ = 439949903537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439949903531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5218159 + ... + 5301799.

It is an arithmetic number, because the mean of its divisors is an integer number (29241661410).

Almost surely, 2^439949903539 is an apocalyptic number.

439949903539 is a deficient number, since it is larger than the sum of its proper divisors (27916679021).

439949903539 is a wasteful number, since it uses less digits than its factorization.

439949903539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86502.

The product of its (nonzero) digits is 127545840, while the sum is 67.

The spelling of 439949903539 in words is "four hundred thirty-nine billion, nine hundred forty-nine million, nine hundred three thousand, five hundred thirty-nine".