797103140047721 has 16 divisors (see below), whose sum is σ = 859347278697600. Its totient is φ = 734991685938048.

The previous prime is 797103140047703. The next prime is 797103140047751. The reversal of 797103140047721 is 127740041301797.

It is a cyclic number.

It is not a de Polignac number, because 797103140047721 - 2⁶ = 797103140047657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797103140047751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490755140 + ... + 492376698.

It is an arithmetic number, because the mean of its divisors is an integer number (53709204918600).

Almost surely, 2^{797103140047721} is an apocalyptic number.

It is an amenable number.

797103140047721 is a deficient number, since it is larger than the sum of its proper divisors (62244138649879).

797103140047721 is a wasteful number, since it uses less digits than its factorization.

797103140047721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662448.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 797103140047721 in words is "seven hundred ninety-seven trillion, one hundred three billion, one hundred forty million, forty-seven thousand, seven hundred twenty-one".