449267891447 has 4 divisors (see below), whose sum is σ = 449270941080. Its totient is φ = 449264841816.

The previous prime is 449267891411. The next prime is 449267891483. The reversal of 449267891447 is 744198762944.

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

It is an interprime number because it is at equal distance from previous prime (449267891411) and next prime (449267891483).

It is a cyclic number.

It is not a de Polignac number, because 449267891447 - 2³⁶ = 380548414711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449267891497) 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, 1291988 + ... + 1602425.

It is an arithmetic number, because the mean of its divisors is an integer number (112317735270).

Almost surely, 2^449267891447 is an apocalyptic number.

449267891447 is a deficient number, since it is larger than the sum of its proper divisors (3049633).

449267891447 is a wasteful number, since it uses less digits than its factorization.

449267891447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049632.

The product of its digits is 97542144, while the sum is 65.

The spelling of 449267891447 in words is "four hundred forty-nine billion, two hundred sixty-seven million, eight hundred ninety-one thousand, four hundred forty-seven".