144872636872 has 64 divisors (see below), whose sum is σ = 297630774000. Its totient is φ = 65802756096.

The previous prime is 144872636869. The next prime is 144872636873. The reversal of 144872636872 is 278636278441.

It can be written as a sum of positive squares in 8 ways, for example, as 125561087716 + 19311549156 = 354346^2 + 138966^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (144872636873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23254654 + ... + 23260882.

Almost surely, 2^144872636872 is an apocalyptic number.

It is an amenable number.

144872636872 is an abundant number, since it is smaller than the sum of its proper divisors (152758137128).

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

144872636872 is a wasteful number, since it uses less digits than its factorization.

144872636872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178 (or 12174 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 58.

The spelling of 144872636872 in words is "one hundred forty-four billion, eight hundred seventy-two million, six hundred thirty-six thousand, eight hundred seventy-two".