1720142425401 has 16 divisors (see below), whose sum is σ = 2432645135424. Its totient is φ = 1077434486784.

The previous prime is 1720142425301. The next prime is 1720142425403. The reversal of 1720142425401 is 1045242410271.

It is a de Polignac number, because none of the positive numbers 2^k-1720142425401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1720142425403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29197855 + ... + 29256708.

It is an arithmetic number, because the mean of its divisors is an integer number (152040320964).

Almost surely, 2^{1720142425401} is an apocalyptic number.

It is an amenable number.

1720142425401 is a deficient number, since it is larger than the sum of its proper divisors (712502710023).

1720142425401 is a wasteful number, since it uses less digits than its factorization.

1720142425401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58455160.

The product of its (nonzero) digits is 17920, while the sum is 33.

Adding to 1720142425401 its reverse (1045242410271), we get a palindrome (2765384835672).

The spelling of 1720142425401 in words is "one trillion, seven hundred twenty billion, one hundred forty-two million, four hundred twenty-five thousand, four hundred one".