797784626487797 has 16 divisors (see below), whose sum is σ = 869366477411712. Its totient is φ = 727696562281920.

The previous prime is 797784626487763. The next prime is 797784626487809.

797784626487797 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 797784626487797 - 2¹⁰ = 797784626486773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797784626487097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721781729 + ... + 722886182.

It is an arithmetic number, because the mean of its divisors is an integer number (54335404838232).

Almost surely, 2^{797784626487797} is an apocalyptic number.

It is an amenable number.

797784626487797 is a deficient number, since it is larger than the sum of its proper divisors (71581850923915).

797784626487797 is a wasteful number, since it uses less digits than its factorization.

797784626487797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444668428.

The product of its digits is 702596063232, while the sum is 98.

The spelling of 797784626487797 in words is "seven hundred ninety-seven trillion, seven hundred eighty-four billion, six hundred twenty-six million, four hundred eighty-seven thousand, seven hundred ninety-seven".