797931671040 has 960 divisors, whose sum is σ = 3391947187200. Its totient is φ = 169196912640.

The previous prime is 797931670999. The next prime is 797931671093. The reversal of 797931671040 is 40176139797.

It is a tau number, because it is divible by the number of its divisors (960).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194662911 + ... + 194667009.

It is an arithmetic number, because the mean of its divisors is an integer number (3533278320).

Almost surely, 2^797931671040 is an apocalyptic number.

797931671040 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 797931671040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695973593600).

797931671040 is an abundant number, since it is smaller than the sum of its proper divisors (2594015516160).

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

797931671040 is a wasteful number, since it uses less digits than its factorization.

797931671040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223 (or 4204 counting only the distinct ones).

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

The spelling of 797931671040 in words is "seven hundred ninety-seven billion, nine hundred thirty-one million, six hundred seventy-one thousand, forty".