78850787337215 has 4 divisors (see below), whose sum is σ = 94620944804664. Its totient is φ = 63080629869768.

The previous prime is 78850787337187. The next prime is 78850787337221. The reversal of 78850787337215 is 51273378705887.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78850787337215 - 2¹² = 78850787333119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7885078733717 + ... + 7885078733726.

It is an arithmetic number, because the mean of its divisors is an integer number (23655236201166).

Almost surely, 2^{78850787337215} is an apocalyptic number.

78850787337215 is a deficient number, since it is larger than the sum of its proper divisors (15770157467449).

78850787337215 is a wasteful number, since it uses less digits than its factorization.

78850787337215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15770157467448.

The product of its (nonzero) digits is 553190400, while the sum is 71.

The spelling of 78850787337215 in words is "seventy-eight trillion, eight hundred fifty billion, seven hundred eighty-seven million, three hundred thirty-seven thousand, two hundred fifteen".