449573409542 has 4 divisors (see below), whose sum is σ = 674360114316. Its totient is φ = 224786704770.

The previous prime is 449573409539. The next prime is 449573409569. The reversal of 449573409542 is 245904375944.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112393352384 + ... + 112393352387.

It is an arithmetic number, because the mean of its divisors is an integer number (168590028579).

Almost surely, 2^449573409542 is an apocalyptic number.

449573409542 is a deficient number, since it is larger than the sum of its proper divisors (224786704774).

449573409542 is a wasteful number, since it uses less digits than its factorization.

449573409542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224786704773.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 449573409542 in words is "four hundred forty-nine billion, five hundred seventy-three million, four hundred nine thousand, five hundred forty-two".