78282331355680 has 192 divisors, whose sum is σ = 198197025465600. Its totient is φ = 29152316723200.

The previous prime is 78282331355677. The next prime is 78282331355713. The reversal of 78282331355680 is 8655313328287.

It is a super-2 number, since 2×78282331355680² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20144226 + ... + 23714014.

It is an arithmetic number, because the mean of its divisors is an integer number (1032276174300).

Almost surely, 2^{78282331355680} 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 78282331355680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99098512732800).

78282331355680 is an abundant number, since it is smaller than the sum of its proper divisors (119914694109920).

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

78282331355680 is a wasteful number, since it uses less digits than its factorization.

78282331355680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569987 (or 3569979 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 78282331355680 in words is "seventy-eight trillion, two hundred eighty-two billion, three hundred thirty-one million, three hundred fifty-five thousand, six hundred eighty".