449720140765 has 16 divisors (see below), whose sum is σ = 636654504960. Its totient is φ = 298431797760.

The previous prime is 449720140643. The next prime is 449720140781. The reversal of 449720140765 is 567041027944.

It is a happy number.

It is not a de Polignac number, because 449720140765 - 2⁷ = 449720140637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207243220 + ... + 207245389.

It is an arithmetic number, because the mean of its divisors is an integer number (39790906560).

Almost surely, 2^449720140765 is an apocalyptic number.

It is an amenable number.

449720140765 is a deficient number, since it is larger than the sum of its proper divisors (186934364195).

449720140765 is a wasteful number, since it uses less digits than its factorization.

449720140765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414488652.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 449720140765 in words is "four hundred forty-nine billion, seven hundred twenty million, one hundred forty thousand, seven hundred sixty-five".