720001740001 has 2 divisors, whose sum is σ = 720001740002. Its totient is φ = 720001740000.

The previous prime is 720001739981. The next prime is 720001740041. The reversal of 720001740001 is 100047100027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 692558504401 + 27443235600 = 832201^2 + 165660^2 .

It is a cyclic number.

It is not a de Polignac number, because 720001740001 - 2⁹ = 720001739489 is a prime.

It is not a weakly prime, because it can be changed into another prime (720001740041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360000870000 + 360000870001.

It is an arithmetic number, because the mean of its divisors is an integer number (360000870001).

Almost surely, 2^720001740001 is an apocalyptic number.

It is an amenable number.

720001740001 is a deficient number, since it is larger than the sum of its proper divisors (1).

720001740001 is an equidigital number, since it uses as much as digits as its factorization.

720001740001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

Adding to 720001740001 its reverse (100047100027), we get a palindrome (820048840028).

The spelling of 720001740001 in words is "seven hundred twenty billion, one million, seven hundred forty thousand, one".