1720073171342 has 16 divisors (see below), whose sum is σ = 2588650555392. Its totient is φ = 857194356480.

The previous prime is 1720073171317. The next prime is 1720073171429. The reversal of 1720073171342 is 2431713700271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1720073171296 and 1720073171305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443534 + ... + 1907057.

It is an arithmetic number, because the mean of its divisors is an integer number (161790659712).

Almost surely, 2^{1720073171342} is an apocalyptic number.

1720073171342 is a deficient number, since it is larger than the sum of its proper divisors (868577384050).

1720073171342 is a wasteful number, since it uses less digits than its factorization.

1720073171342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351803.

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 1720073171342 in words is "one trillion, seven hundred twenty billion, seventy-three million, one hundred seventy-one thousand, three hundred forty-two".