797491286883648 has 560 divisors, whose sum is σ = 2795304025514880. Its totient is φ = 219965275385856.

The previous prime is 797491286883589. The next prime is 797491286883661. The reversal of 797491286883648 is 846388682194797.

797491286883648 is a `hidden beast` number, since 7 + 9 + 7 + 4 + 91 + 2 + 86 + 88 + 364 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

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, 7664227590 + ... + 7664331642.

Almost surely, 2^{797491286883648} 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 797491286883648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397652012757440).

797491286883648 is an abundant number, since it is smaller than the sum of its proper divisors (1997812738631232).

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

797491286883648 is a wasteful number, since it uses less digits than its factorization.

797491286883648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111396 (or 111377 counting only the distinct ones).

The product of its digits is 56184274944, while the sum is 90.

The spelling of 797491286883648 in words is "seven hundred ninety-seven trillion, four hundred ninety-one billion, two hundred eighty-six million, eight hundred eighty-three thousand, six hundred forty-eight".