797023906559 has 4 divisors (see below), whose sum is σ = 838972533240. Its totient is φ = 755075279880.

The previous prime is 797023906493. The next prime is 797023906589. The reversal of 797023906559 is 955609320797.

It is a happy number.

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 797023906559 - 2¹² = 797023902463 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 (797023906589) 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, 20974313312 + ... + 20974313349.

It is an arithmetic number, because the mean of its divisors is an integer number (209743133310).

Almost surely, 2^797023906559 is an apocalyptic number.

797023906559 is a deficient number, since it is larger than the sum of its proper divisors (41948626681).

797023906559 is a wasteful number, since it uses less digits than its factorization.

797023906559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41948626680.

The product of its (nonzero) digits is 32148900, while the sum is 62.

The spelling of 797023906559 in words is "seven hundred ninety-seven billion, twenty-three million, nine hundred six thousand, five hundred fifty-nine".