78798769288752 has 80 divisors (see below), whose sum is σ = 203751088381440. Its totient is φ = 26242057184256.

The previous prime is 78798769288721. The next prime is 78798769288783. The reversal of 78798769288752 is 25788296789787.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78798769288721) and next prime (78798769288783).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353755749 + ... + 353978427.

It is an arithmetic number, because the mean of its divisors is an integer number (2546888604768).

Almost surely, 2^{78798769288752} is an apocalyptic number.

It is an amenable number.

78798769288752 is an abundant number, since it is smaller than the sum of its proper divisors (124952319092688).

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

78798769288752 is a wasteful number, since it uses less digits than its factorization.

78798769288752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229450 (or 229444 counting only the distinct ones).

The product of its digits is 95591301120, while the sum is 93.

The spelling of 78798769288752 in words is "seventy-eight trillion, seven hundred ninety-eight billion, seven hundred sixty-nine million, two hundred eighty-eight thousand, seven hundred fifty-two".