78063380775 has 48 divisors (see below), whose sum is σ = 151840951200. Its totient is φ = 39184750080.

The previous prime is 78063380699. The next prime is 78063380783. The reversal of 78063380775 is 57708336087.

It is not a de Polignac number, because 78063380775 - 2¹⁸ = 78063118631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3389980 + ... + 3412929.

It is an arithmetic number, because the mean of its divisors is an integer number (3163353150).

Almost surely, 2^78063380775 is an apocalyptic number.

78063380775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78063380775 is a deficient number, since it is larger than the sum of its proper divisors (73777570425).

78063380775 is a wasteful number, since it uses less digits than its factorization.

78063380775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802945 (or 6802934 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 78063380775 in words is "seventy-eight billion, sixty-three million, three hundred eighty thousand, seven hundred seventy-five".