144728832657 has 8 divisors (see below), whose sum is σ = 192973534240. Its totient is φ = 96485009760.

The previous prime is 144728832649. The next prime is 144728832679. The reversal of 144728832657 is 756238827441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144728832657 - 2³ = 144728832649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144728832597 and 144728832606.

It is not an unprimeable number, because it can be changed into a prime (144728832617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537069 + ... + 760197.

It is an arithmetic number, because the mean of its divisors is an integer number (24121691780).

Almost surely, 2^144728832657 is an apocalyptic number.

It is an amenable number.

144728832657 is a deficient number, since it is larger than the sum of its proper divisors (48244701583).

144728832657 is a wasteful number, since it uses less digits than its factorization.

144728832657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439343.

The product of its digits is 18063360, while the sum is 57.

The spelling of 144728832657 in words is "one hundred forty-four billion, seven hundred twenty-eight million, eight hundred thirty-two thousand, six hundred fifty-seven".