1353920720729 has 32 divisors (see below), whose sum is σ = 1483807656960. Its totient is φ = 1229843865600.

The previous prime is 1353920720671. The next prime is 1353920720749. The reversal of 1353920720729 is 9270270293531.

It is not a de Polignac number, because 1353920720729 - 2¹⁶ = 1353920655193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1353920720749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379141514 + ... + 379145084.

It is an arithmetic number, because the mean of its divisors is an integer number (46368989280).

Almost surely, 2^{1353920720729} is an apocalyptic number.

It is an amenable number.

1353920720729 is a deficient number, since it is larger than the sum of its proper divisors (129886936231).

1353920720729 is a wasteful number, since it uses less digits than its factorization.

1353920720729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 1353920720729 in words is "one trillion, three hundred fifty-three billion, nine hundred twenty million, seven hundred twenty thousand, seven hundred twenty-nine".