4399490449493 has 4 divisors (see below), whose sum is σ = 4399628834400. Its totient is φ = 4399352064588.

The previous prime is 4399490449477. The next prime is 4399490449517. The reversal of 4399490449493 is 3949440949934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4399490449493 - 2⁴ = 4399490449477 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 (4399490949493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69144755 + ... + 69208352.

It is an arithmetic number, because the mean of its divisors is an integer number (1099907208600).

Almost surely, 2^{4399490449493} is an apocalyptic number.

It is an amenable number.

4399490449493 is a deficient number, since it is larger than the sum of its proper divisors (138384907).

4399490449493 is a wasteful number, since it uses less digits than its factorization.

4399490449493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138384906.

The product of its (nonzero) digits is 544195584, while the sum is 71.

The spelling of 4399490449493 in words is "four trillion, three hundred ninety-nine billion, four hundred ninety million, four hundred forty-nine thousand, four hundred ninety-three".