449780470139 has 32 divisors (see below), whose sum is σ = 616750073856. Its totient is φ = 316635016320.

The previous prime is 449780470123. The next prime is 449780470157. The reversal of 449780470139 is 931074087944.

It is not a de Polignac number, because 449780470139 - 2⁴ = 449780470123 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (449780478139) 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, 4733072 + ... + 4827165.

It is an arithmetic number, because the mean of its divisors is an integer number (19273439808).

Almost surely, 2^449780470139 is an apocalyptic number.

449780470139 is a deficient number, since it is larger than the sum of its proper divisors (166969603717).

449780470139 is a wasteful number, since it uses less digits than its factorization.

449780470139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560315.

The product of its (nonzero) digits is 6096384, while the sum is 56.

It can be divided in two parts, 449780 and 470139, that added together give a palindrome (919919).

The spelling of 449780470139 in words is "four hundred forty-nine billion, seven hundred eighty million, four hundred seventy thousand, one hundred thirty-nine".