78180568834268 has 6 divisors (see below), whose sum is σ = 136815995459976. Its totient is φ = 39090284417132.

The previous prime is 78180568834219. The next prime is 78180568834273. The reversal of 78180568834268 is 86243886508187.

It is a happy number.

It is a super-2 number, since 2×78180568834268² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78180568834195 and 78180568834204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9772571104280 + ... + 9772571104287.

It is an arithmetic number, because the mean of its divisors is an integer number (22802665909996).

Almost surely, 2^{78180568834268} is an apocalyptic number.

It is an amenable number.

78180568834268 is a deficient number, since it is larger than the sum of its proper divisors (58635426625708).

78180568834268 is a wasteful number, since it uses less digits than its factorization.

78180568834268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19545142208571 (or 19545142208569 counting only the distinct ones).

The product of its (nonzero) digits is 990904320, while the sum is 74.

The spelling of 78180568834268 in words is "seventy-eight trillion, one hundred eighty billion, five hundred sixty-eight million, eight hundred thirty-four thousand, two hundred sixty-eight".