449801390739 has 4 divisors (see below), whose sum is σ = 599735187656. Its totient is φ = 299867593824.

The previous prime is 449801390723. The next prime is 449801390749. The reversal of 449801390739 is 937093108944.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 449801390739 - 2⁴ = 449801390723 is a prime.

It is a super-2 number, since 2×449801390739² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449801390749) 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, 74966898454 + ... + 74966898459.

It is an arithmetic number, because the mean of its divisors is an integer number (149933796914).

Almost surely, 2^449801390739 is an apocalyptic number.

449801390739 is a deficient number, since it is larger than the sum of its proper divisors (149933796917).

449801390739 is a wasteful number, since it uses less digits than its factorization.

449801390739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149933796916.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 449801390739 in words is "four hundred forty-nine billion, eight hundred one million, three hundred ninety thousand, seven hundred thirty-nine".