78828143313 has 4 divisors (see below), whose sum is σ = 105104191088. Its totient is φ = 52552095540.

The previous prime is 78828143299. The next prime is 78828143341. The reversal of 78828143313 is 31334182887.

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 not a de Polignac number, because 78828143313 - 2¹² = 78828139217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78828144313) 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, 13138023883 + ... + 13138023888.

It is an arithmetic number, because the mean of its divisors is an integer number (26276047772).

Almost surely, 2^78828143313 is an apocalyptic number.

It is an amenable number.

78828143313 is a deficient number, since it is larger than the sum of its proper divisors (26276047775).

78828143313 is a wasteful number, since it uses less digits than its factorization.

78828143313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26276047774.

The product of its digits is 774144, while the sum is 48.

The spelling of 78828143313 in words is "seventy-eight billion, eight hundred twenty-eight million, one hundred forty-three thousand, three hundred thirteen".