449270147887 has 4 divisors (see below), whose sum is σ = 490112888616. Its totient is φ = 408427407160.

The previous prime is 449270147861. The next prime is 449270147923. The reversal of 449270147887 is 788741072944.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 449270147887 - 2¹¹ = 449270145839 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 (449270144887) 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, 20421370348 + ... + 20421370369.

It is an arithmetic number, because the mean of its divisors is an integer number (122528222154).

Almost surely, 2^449270147887 is an apocalyptic number.

449270147887 is a deficient number, since it is larger than the sum of its proper divisors (40842740729).

449270147887 is a wasteful number, since it uses less digits than its factorization.

449270147887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40842740728.

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 449270147887 in words is "four hundred forty-nine billion, two hundred seventy million, one hundred forty-seven thousand, eight hundred eighty-seven".