1440617840641 has 16 divisors (see below), whose sum is σ = 1658580352000. Its totient is φ = 1225711206720.

The previous prime is 1440617840621. The next prime is 1440617840707. The reversal of 1440617840641 is 1460487160441.

It is not a de Polignac number, because 1440617840641 - 2⁷ = 1440617840513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440617840591 and 1440617840600.

It is not an unprimeable number, because it can be changed into a prime (1440617840621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427735 + ... + 1750483.

It is an arithmetic number, because the mean of its divisors is an integer number (103661272000).

Almost surely, 2^{1440617840641} is an apocalyptic number.

It is an amenable number.

1440617840641 is a deficient number, since it is larger than the sum of its proper divisors (217962511359).

1440617840641 is a wasteful number, since it uses less digits than its factorization.

1440617840641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323904.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 1440617840641 in words is "one trillion, four hundred forty billion, six hundred seventeen million, eight hundred forty thousand, six hundred forty-one".