144636875240 has 128 divisors (see below), whose sum is σ = 383315587200. Its totient is φ = 48423889920.

The previous prime is 144636875197. The next prime is 144636875249. The reversal of 144636875240 is 42578636441.

It is not an unprimeable number, because it can be changed into a prime (144636875249) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2192579 + ... + 2257581.

It is an arithmetic number, because the mean of its divisors is an integer number (2994653025).

Almost surely, 2^144636875240 is an apocalyptic number.

144636875240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144636875240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191657793600).

144636875240 is an abundant number, since it is smaller than the sum of its proper divisors (238678711960).

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

144636875240 is a wasteful number, since it uses less digits than its factorization.

144636875240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65427 (or 65423 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 144636875240 in words is "one hundred forty-four billion, six hundred thirty-six million, eight hundred seventy-five thousand, two hundred forty".