149897880444 has 24 divisors (see below), whose sum is σ = 376666469200. Its totient is φ = 46122424704.

The previous prime is 149897880403. The next prime is 149897880523. The reversal of 149897880444 is 444088798941.

149897880444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 480441769 + ... + 480442080.

Almost surely, 2^149897880444 is an apocalyptic number.

It is an amenable number.

149897880444 is an abundant number, since it is smaller than the sum of its proper divisors (226768588756).

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

149897880444 is a wasteful number, since it uses less digits than its factorization.

149897880444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960883869 (or 960883867 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 66.

The spelling of 149897880444 in words is "one hundred forty-nine billion, eight hundred ninety-seven million, eight hundred eighty thousand, four hundred forty-four".