78506887063133 has 4 divisors (see below), whose sum is σ = 81039367291008. Its totient is φ = 75974406835260.

The previous prime is 78506887063097. The next prime is 78506887063159. The reversal of 78506887063133 is 33136078860587.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78506887063133 - 2¹² = 78506887059037 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 78506887063133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78506887063333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266240113891 + ... + 1266240113952.

It is an arithmetic number, because the mean of its divisors is an integer number (20259841822752).

Almost surely, 2^{78506887063133} is an apocalyptic number.

It is an amenable number.

78506887063133 is a deficient number, since it is larger than the sum of its proper divisors (2532480227875).

78506887063133 is a wasteful number, since it uses less digits than its factorization.

78506887063133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532480227874.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 78506887063133 in words is "seventy-eight trillion, five hundred six billion, eight hundred eighty-seven million, sixty-three thousand, one hundred thirty-three".