797421426862896 has 560 divisors, whose sum is σ = 2531160415365120. Its totient is φ = 241248549934080.

The previous prime is 797421426862889. The next prime is 797421426862987. The reversal of 797421426862896 is 698268624124797.

797421426862896 is a `hidden beast` number, since 7 + 9 + 7 + 4 + 2 + 1 + 426 + 86 + 28 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 416843400436 + ... + 416843402348.

It is an arithmetic number, because the mean of its divisors is an integer number (4519929313152).

Almost surely, 2^{797421426862896} 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 797421426862896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265580207682560).

797421426862896 is an abundant number, since it is smaller than the sum of its proper divisors (1733738988502224).

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

797421426862896 is a wasteful number, since it uses less digits than its factorization.

797421426862896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556 (or 5535 counting only the distinct ones).

The product of its digits is 7023034368, while the sum is 81.

The spelling of 797421426862896 in words is "seven hundred ninety-seven trillion, four hundred twenty-one billion, four hundred twenty-six million, eight hundred sixty-two thousand, eight hundred ninety-six".