448140647578 has 32 divisors (see below), whose sum is σ = 743578545024. Its totient is φ = 201218686272.

The previous prime is 448140647567. The next prime is 448140647599. The reversal of 448140647578 is 875746041844.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9082651 + ... + 9131857.

It is an arithmetic number, because the mean of its divisors is an integer number (23236829532).

Almost surely, 2^448140647578 is an apocalyptic number.

448140647578 is a deficient number, since it is larger than the sum of its proper divisors (295437897446).

448140647578 is a wasteful number, since it uses less digits than its factorization.

448140647578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58726.

The product of its (nonzero) digits is 24084480, while the sum is 58.

The spelling of 448140647578 in words is "four hundred forty-eight billion, one hundred forty million, six hundred forty-seven thousand, five hundred seventy-eight".