1353920720671 has 2 divisors, whose sum is σ = 1353920720672. Its totient is φ = 1353920720670.

The previous prime is 1353920720639. The next prime is 1353920720749. The reversal of 1353920720671 is 1760270293531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1353920720671 - 2⁵ = 1353920720639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353920720071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676960360335 + 676960360336.

It is an arithmetic number, because the mean of its divisors is an integer number (676960360336).

Almost surely, 2^{1353920720671} is an apocalyptic number.

1353920720671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353920720671 is an equidigital number, since it uses as much as digits as its factorization.

1353920720671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 1353920720671 in words is "one trillion, three hundred fifty-three billion, nine hundred twenty million, seven hundred twenty thousand, six hundred seventy-one".