1730220653738 has 16 divisors (see below), whose sum is σ = 2751272879040. Its totient is φ = 813251004096.

The previous prime is 1730220653737. The next prime is 1730220653741. The reversal of 1730220653738 is 8373560220371.

It is a junction number, because it is equal to n+sod(n) for n = 1730220653692 and 1730220653701.

It is not an unprimeable number, because it can be changed into a prime (1730220653731) 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, 30298556 + ... + 30355607.

It is an arithmetic number, because the mean of its divisors is an integer number (171954554940).

Almost surely, 2^{1730220653738} is an apocalyptic number.

1730220653738 is a deficient number, since it is larger than the sum of its proper divisors (1021052225302).

1730220653738 is a wasteful number, since it uses less digits than its factorization.

1730220653738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60655021.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 1730220653738 in words is "one trillion, seven hundred thirty billion, two hundred twenty million, six hundred fifty-three thousand, seven hundred thirty-eight".