144090913638 has 16 divisors (see below), whose sum is σ = 329350659840. Its totient is φ = 41168832456.

The previous prime is 144090913633. The next prime is 144090913651. The reversal of 144090913638 is 836319090441.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144090913633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1715367978 + ... + 1715368061.

It is an arithmetic number, because the mean of its divisors is an integer number (20584416240).

Almost surely, 2^144090913638 is an apocalyptic number.

144090913638 is an abundant number, since it is smaller than the sum of its proper divisors (185259746202).

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

144090913638 is a wasteful number, since it uses less digits than its factorization.

144090913638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430736051.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 144090913638 in words is "one hundred forty-four billion, ninety million, nine hundred thirteen thousand, six hundred thirty-eight".