78103476768 has 96 divisors (see below), whose sum is σ = 211414637952. Its totient is φ = 25231104000.

The previous prime is 78103476761. The next prime is 78103476769. The reversal of 78103476768 is 86767430187.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×78103476768² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78103476761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528630 + ... + 660042.

It is an arithmetic number, because the mean of its divisors is an integer number (2202235812).

Almost surely, 2^78103476768 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 78103476768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105707318976).

78103476768 is an abundant number, since it is smaller than the sum of its proper divisors (133311161184).

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

78103476768 is a wasteful number, since it uses less digits than its factorization.

78103476768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131618 (or 131610 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 78103476768 in words is "seventy-eight billion, one hundred three million, four hundred seventy-six thousand, seven hundred sixty-eight".