146251789448 has 12 divisors (see below), whose sum is σ = 274224133365. Its totient is φ = 73125353888.

The previous prime is 146251789441. The next prime is 146251789469. The reversal of 146251789448 is 844987152641.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 141136965124 + 5114824324 = 375682^2 + 71518^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=270418.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146251789441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1014068 + ... + 1149276.

Almost surely, 2^146251789448 is an apocalyptic number.

It is an amenable number.

146251789448 is a deficient number, since it is larger than the sum of its proper divisors (127972343917).

146251789448 is an frugal number, since it uses more digits than its factorization.

146251789448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270424 (or 135211 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 59.

The spelling of 146251789448 in words is "one hundred forty-six billion, two hundred fifty-one million, seven hundred eighty-nine thousand, four hundred forty-eight".