797653059840 has 864 divisors, whose sum is σ = 3522600297216. Its totient is φ = 168290058240.

The previous prime is 797653059811. The next prime is 797653059857. The reversal of 797653059840 is 48950356797.

797653059840 is a `hidden beast` number, since 7 + 9 + 7 + 6 + 5 + 30 + 598 + 4 + 0 = 666.

797653059840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-2 number, since 2×797653059840² (a number of 25 digits) contains 22 as substring.

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

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, 28290550 + ... + 28318730.

Almost surely, 2^797653059840 is an apocalyptic number.

797653059840 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 797653059840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761300148608).

797653059840 is an abundant number, since it is smaller than the sum of its proper divisors (2724947237376).

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

797653059840 is a wasteful number, since it uses less digits than its factorization.

797653059840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28237 (or 28211 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 797653059840 in words is "seven hundred ninety-seven billion, six hundred fifty-three million, fifty-nine thousand, eight hundred forty".