448531157394 has 48 divisors (see below), whose sum is σ = 975421775328. Its totient is φ = 148956325056.

The previous prime is 448531157377. The next prime is 448531157453. The reversal of 448531157394 is 493751135844.

448531157394 is a `hidden beast` number, since 4 + 4 + 8 + 53 + 11 + 573 + 9 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 448531157394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13118229 + ... + 13152375.

It is an arithmetic number, because the mean of its divisors is an integer number (20321286986).

Almost surely, 2^448531157394 is an apocalyptic number.

448531157394 is an abundant number, since it is smaller than the sum of its proper divisors (526890617934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448531157394 is a wasteful number, since it uses less digits than its factorization.

448531157394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36839 (or 36836 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 448531157394 in words is "four hundred forty-eight billion, five hundred thirty-one million, one hundred fifty-seven thousand, three hundred ninety-four".