144731623943728 has 80 divisors (see below), whose sum is σ = 295526731685760. Its totient is φ = 68565561523200.

The previous prime is 144731623943719. The next prime is 144731623943743. The reversal of 144731623943728 is 827349326137441.

It is a super-2 number, since 2×144731623943728² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144731623943728.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6266926 + ... + 18131122.

It is an arithmetic number, because the mean of its divisors is an integer number (3694084146072).

Almost surely, 2^{144731623943728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144731623943728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147763365842880).

144731623943728 is an abundant number, since it is smaller than the sum of its proper divisors (150795107742032).

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

144731623943728 is a wasteful number, since it uses less digits than its factorization.

144731623943728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11864726 (or 11864720 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 64.

The spelling of 144731623943728 in words is "one hundred forty-four trillion, seven hundred thirty-one billion, six hundred twenty-three million, nine hundred forty-three thousand, seven hundred twenty-eight".