78936078882365 has 8 divisors (see below), whose sum is σ = 94767290628408. Its totient is φ = 63119532459520.

The previous prime is 78936078882359. The next prime is 78936078882371. The reversal of 78936078882365 is 56328887063987.

It is an interprime number because it is at equal distance from previous prime (78936078882359) and next prime (78936078882371).

It can be written as a sum of positive squares in 4 ways, for example, as 9175731547609 + 69760347334756 = 3029147^2 + 8352266^2 .

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

It is not a de Polignac number, because 78936078882365 - 2¹⁴ = 78936078865981 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 78936078882365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3666318956 + ... + 3666340485.

It is an arithmetic number, because the mean of its divisors is an integer number (11845911328551).

Almost surely, 2^{78936078882365} is an apocalyptic number.

It is an amenable number.

78936078882365 is a deficient number, since it is larger than the sum of its proper divisors (15831211746043).

78936078882365 is a wasteful number, since it uses less digits than its factorization.

78936078882365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332661599.

The product of its (nonzero) digits is 5852528640, while the sum is 80.

The spelling of 78936078882365 in words is "seventy-eight trillion, nine hundred thirty-six billion, seventy-eight million, eight hundred eighty-two thousand, three hundred sixty-five".