144681114478 has 16 divisors (see below), whose sum is σ = 217899196416. Its totient is φ = 72048181720.

The previous prime is 144681114449. The next prime is 144681114553. The reversal of 144681114478 is 874411186441.

It is a super-2 number, since 2×144681114478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316723 + ... + 2378353.

It is an arithmetic number, because the mean of its divisors is an integer number (13618699776).

Almost surely, 2^144681114478 is an apocalyptic number.

144681114478 is a deficient number, since it is larger than the sum of its proper divisors (73218081938).

144681114478 is a wasteful number, since it uses less digits than its factorization.

144681114478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66359.

The product of its digits is 688128, while the sum is 49.

The spelling of 144681114478 in words is "one hundred forty-four billion, six hundred eighty-one million, one hundred fourteen thousand, four hundred seventy-eight".