797659979040 has 576 divisors, whose sum is σ = 2972647641600. Its totient is φ = 194088960000.

The previous prime is 797659979033. The next prime is 797659979057. The reversal of 797659979040 is 40979956797.

797659979040 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×797659979040² (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 a self number, because there is not a number n which added to its sum of digits gives 797659979040.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88614540 + ... + 88623540.

It is an arithmetic number, because the mean of its divisors is an integer number (5160846600).

Almost surely, 2^797659979040 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 797659979040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486323820800).

797659979040 is an abundant number, since it is smaller than the sum of its proper divisors (2174987662560).

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

797659979040 is a wasteful number, since it uses less digits than its factorization.

797659979040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161 (or 9150 counting only the distinct ones).

The product of its (nonzero) digits is 270050760, while the sum is 72.

The spelling of 797659979040 in words is "seven hundred ninety-seven billion, six hundred fifty-nine million, nine hundred seventy-nine thousand, forty".