1440640282109 has 8 divisors (see below), whose sum is σ = 1647433720128. Its totient is φ = 1234093764960.

The previous prime is 1440640282097. The next prime is 1440640282247. The reversal of 1440640282109 is 9012820460441.

It is a happy number.

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

It is not a de Polignac number, because 1440640282109 - 2⁴ = 1440640282093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440640282409) 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, 61717712 + ... + 61741049.

It is an arithmetic number, because the mean of its divisors is an integer number (205929215016).

Almost surely, 2^{1440640282109} is an apocalyptic number.

It is an amenable number.

1440640282109 is a deficient number, since it is larger than the sum of its proper divisors (206793438019).

1440640282109 is a wasteful number, since it uses less digits than its factorization.

1440640282109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123460435.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 1440640282109 in words is "one trillion, four hundred forty billion, six hundred forty million, two hundred eighty-two thousand, one hundred nine".