144622765872 has 480 divisors, whose sum is σ = 467783393280. Its totient is φ = 42522278400.

The previous prime is 144622765871. The next prime is 144622765877. The reversal of 144622765872 is 278567226441.

144622765872 is a `hidden beast` number, since 1 + 4 + 4 + 622 + 7 + 6 + 5 + 8 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144622765871) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 685415847 + ... + 685416057.

It is an arithmetic number, because the mean of its divisors is an integer number (974548736).

Almost surely, 2^144622765872 is an apocalyptic number.

144622765872 is a gapful number since it is divisible by the number (12) 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 144622765872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233891696640).

144622765872 is an abundant number, since it is smaller than the sum of its proper divisors (323160627408).

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

144622765872 is a wasteful number, since it uses less digits than its factorization.

144622765872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 387 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 144622765872 in words is "one hundred forty-four billion, six hundred twenty-two million, seven hundred sixty-five thousand, eight hundred seventy-two".