797721696000 has 720 divisors, whose sum is σ = 3097869622848. Its totient is φ = 203461632000.

The previous prime is 797721695983. The next prime is 797721696029. The reversal of 797721696000 is 696127797.

It is a happy number.

797721696000 is a `hidden beast` number, since 7 + 9 + 7 + 7 + 21 + 6 + 9 + 600 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 59609310 + ... + 59622690.

Almost surely, 2^797721696000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797721696000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548934811424).

797721696000 is an abundant number, since it is smaller than the sum of its proper divisors (2300147926848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797721696000 is a wasteful number, since it uses less digits than its factorization.

797721696000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13447 (or 13414 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 797721696000 in words is "seven hundred ninety-seven billion, seven hundred twenty-one million, six hundred ninety-six thousand".