449078086251 has 8 divisors (see below), whose sum is σ = 665300868560. Its totient is φ = 299385390816.

The previous prime is 449078086241. The next prime is 449078086291. The reversal of 449078086251 is 152680870944.

It is a happy number.

449078086251 is a `hidden beast` number, since 4 + 4 + 9 + 0 + 7 + 8 + 0 + 8 + 625 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-449078086251 is a prime.

It is a super-2 number, since 2×449078086251² (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 (449078086241) 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, 8316260830 + ... + 8316260883.

It is an arithmetic number, because the mean of its divisors is an integer number (83162608570).

Almost surely, 2^449078086251 is an apocalyptic number.

449078086251 is a deficient number, since it is larger than the sum of its proper divisors (216222782309).

449078086251 is a wasteful number, since it uses less digits than its factorization.

449078086251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16632521722 (or 16632521716 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 449078086251 in words is "four hundred forty-nine billion, seventy-eight million, eighty-six thousand, two hundred fifty-one".