449249629251 has 16 divisors (see below), whose sum is σ = 630545552000. Its totient is φ = 283727717568.

The previous prime is 449249629223. The next prime is 449249629253. The reversal of 449249629251 is 152926942944.

It is a happy number.

It is not a de Polignac number, because 449249629251 - 2⁷ = 449249629123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 449249629191 and 449249629200.

It is not an unprimeable number, because it can be changed into a prime (449249629253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2041800 + ... + 2251098.

It is an arithmetic number, because the mean of its divisors is an integer number (39409097000).

Almost surely, 2^449249629251 is an apocalyptic number.

449249629251 is a deficient number, since it is larger than the sum of its proper divisors (181295922749).

449249629251 is a wasteful number, since it uses less digits than its factorization.

449249629251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246978.

The product of its digits is 11197440, while the sum is 57.

The spelling of 449249629251 in words is "four hundred forty-nine billion, two hundred forty-nine million, six hundred twenty-nine thousand, two hundred fifty-one".