1720700252047 has 4 divisors (see below), whose sum is σ = 1966514573776. Its totient is φ = 1474885930320.

The previous prime is 1720700252003. The next prime is 1720700252081. The reversal of 1720700252047 is 7402520070271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1720700252047 - 2²³ = 1720691863439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1720700251997 and 1720700252015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720700252347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122907160854 + ... + 122907160867.

It is an arithmetic number, because the mean of its divisors is an integer number (491628643444).

Almost surely, 2^{1720700252047} is an apocalyptic number.

1720700252047 is a deficient number, since it is larger than the sum of its proper divisors (245814321729).

1720700252047 is an equidigital number, since it uses as much as digits as its factorization.

1720700252047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245814321728.

The product of its (nonzero) digits is 54880, while the sum is 37.

The spelling of 1720700252047 in words is "one trillion, seven hundred twenty billion, seven hundred million, two hundred fifty-two thousand, forty-seven".