1720613241445 has 32 divisors (see below), whose sum is σ = 2484432691200. Its totient is φ = 1117508809536.

The previous prime is 1720613241439. The next prime is 1720613241463. The reversal of 1720613241445 is 5441423160271.

It is not a de Polignac number, because 1720613241445 - 2⁷ = 1720613241317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1720613241398 and 1720613241407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2806062 + ... + 3363808.

It is an arithmetic number, because the mean of its divisors is an integer number (77638521600).

Almost surely, 2^{1720613241445} is an apocalyptic number.

It is an amenable number.

1720613241445 is a deficient number, since it is larger than the sum of its proper divisors (763819449755).

1720613241445 is a wasteful number, since it uses less digits than its factorization.

1720613241445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562417.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 1720613241445 in words is "one trillion, seven hundred twenty billion, six hundred thirteen million, two hundred forty-one thousand, four hundred forty-five".