4454406498639 has 32 divisors (see below), whose sum is σ = 6237278277120. Its totient is φ = 2823988318592.

The previous prime is 4454406498631. The next prime is 4454406498649. The reversal of 4454406498639 is 9368946044544.

It is a cyclic number.

It is not a de Polignac number, because 4454406498639 - 2³ = 4454406498631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4454406498639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454406498631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227494 + ... + 2993420.

It is an arithmetic number, because the mean of its divisors is an integer number (194914946160).

Almost surely, 2^{4454406498639} is an apocalyptic number.

4454406498639 is a deficient number, since it is larger than the sum of its proper divisors (1782871778481).

4454406498639 is a wasteful number, since it uses less digits than its factorization.

4454406498639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766239.

The product of its (nonzero) digits is 358318080, while the sum is 66.

The spelling of 4454406498639 in words is "four trillion, four hundred fifty-four billion, four hundred six million, four hundred ninety-eight thousand, six hundred thirty-nine".