797565339648 has 576 divisors, whose sum is σ = 2968042896000. Its totient is φ = 207147663360.

The previous prime is 797565339551. The next prime is 797565339661. The reversal of 797565339648 is 846933565797.

797565339648 is a `hidden beast` number, since 79 + 75 + 65 + 3 + 396 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×797565339648² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46827198 + ... + 46844226.

It is an arithmetic number, because the mean of its divisors is an integer number (5152852250).

Almost surely, 2^797565339648 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 797565339648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484021448000).

797565339648 is an abundant number, since it is smaller than the sum of its proper divisors (2170477556352).

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

797565339648 is a wasteful number, since it uses less digits than its factorization.

797565339648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17089 (or 17052 counting only the distinct ones).

The product of its digits is 1028764800, while the sum is 72.

The spelling of 797565339648 in words is "seven hundred ninety-seven billion, five hundred sixty-five million, three hundred thirty-nine thousand, six hundred forty-eight".