78730215143 has 8 divisors (see below), whose sum is σ = 78902510160. Its totient is φ = 78558094080.

The previous prime is 78730215139. The next prime is 78730215169. The reversal of 78730215143 is 34151203787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78730215143 - 2² = 78730215139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78730215143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78730215173) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 884183 + ... + 969143.

It is an arithmetic number, because the mean of its divisors is an integer number (9862813770).

Almost surely, 2^78730215143 is an apocalyptic number.

78730215143 is a deficient number, since it is larger than the sum of its proper divisors (172295017).

78730215143 is a wasteful number, since it uses less digits than its factorization.

78730215143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86977.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 78730215143 in words is "seventy-eight billion, seven hundred thirty million, two hundred fifteen thousand, one hundred forty-three".