1720148744573 has 32 divisors (see below), whose sum is σ = 2218239074304. Its totient is φ = 1299107411712.

The previous prime is 1720148744551. The next prime is 1720148744581. The reversal of 1720148744573 is 3754478410271.

It is not a de Polignac number, because 1720148744573 - 2¹⁰ = 1720148743549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720148744593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6557315 + ... + 6814592.

It is an arithmetic number, because the mean of its divisors is an integer number (69319971072).

Almost surely, 2^{1720148744573} is an apocalyptic number.

It is an amenable number.

1720148744573 is a deficient number, since it is larger than the sum of its proper divisors (498090329731).

1720148744573 is a wasteful number, since it uses less digits than its factorization.

1720148744573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13372001.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 1720148744573 in words is "one trillion, seven hundred twenty billion, one hundred forty-eight million, seven hundred forty-four thousand, five hundred seventy-three".