144472857698 has 24 divisors (see below), whose sum is σ = 247914975252. Its totient is φ = 62757437184.

The previous prime is 144472857631. The next prime is 144472857713. The reversal of 144472857698 is 896758274441.

It can be written as a sum of positive squares in 6 ways, for example, as 86852215849 + 57620641849 = 294707^2 + 240043^2 .

It is a super-2 number, since 2×144472857698² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9606065 + ... + 9621092.

Almost surely, 2^144472857698 is an apocalyptic number.

144472857698 is a deficient number, since it is larger than the sum of its proper divisors (103442117554).

144472857698 is a wasteful number, since it uses less digits than its factorization.

144472857698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19227206 (or 19227189 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 65.

The spelling of 144472857698 in words is "one hundred forty-four billion, four hundred seventy-two million, eight hundred fifty-seven thousand, six hundred ninety-eight".