449051668280 has 32 divisors (see below), whose sum is σ = 1010481769440. Its totient is φ = 179600131200.

The previous prime is 449051668277. The next prime is 449051668283. The reversal of 449051668280 is 82866150944.

It is an interprime number because it is at equal distance from previous prime (449051668277) and next prime (449051668283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449051668283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285071 + ... + 989630.

It is an arithmetic number, because the mean of its divisors is an integer number (31577555295).

Almost surely, 2^449051668280 is an apocalyptic number.

449051668280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449051668280 is an abundant number, since it is smaller than the sum of its proper divisors (561430101160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449051668280 is a wasteful number, since it uses less digits than its factorization.

449051668280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283519 (or 1283515 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 449051668280 in words is "four hundred forty-nine billion, fifty-one million, six hundred sixty-eight thousand, two hundred eighty".