798071289200640 has 5280 divisors, whose sum is σ = 3705620239708800. Its totient is φ = 163833345736704.

The previous prime is 798071289200569. The next prime is 798071289200737. The reversal of 798071289200640 is 46002982170897.

798071289200640 is a `hidden beast` number, since 7 + 9 + 80 + 71 + 289 + 200 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 351 ways as a sum of consecutive naturals, for example, 21569494302702 + ... + 21569494302738.

Almost surely, 2^{798071289200640} is an apocalyptic number.

798071289200640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798071289200640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852810119854400).

798071289200640 is an abundant number, since it is smaller than the sum of its proper divisors (2907548950508160).

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

798071289200640 is an frugal number, since it uses more digits than its factorization.

798071289200640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 798071289200640 in words is "seven hundred ninety-eight trillion, seventy-one billion, two hundred eighty-nine million, two hundred thousand, six hundred forty".