78286879763 has 4 divisors (see below), whose sum is σ = 81690657168. Its totient is φ = 74883102360.

The previous prime is 78286879751. The next prime is 78286879837. The reversal of 78286879763 is 36797868287.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36797868287 = 263 ⋅139915849.

It is a cyclic number.

It is not a de Polignac number, because 78286879763 - 2⁴ = 78286879747 is a prime.

It is a super-2 number, since 2×78286879763² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78286879703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701888668 + ... + 1701888713.

It is an arithmetic number, because the mean of its divisors is an integer number (20422664292).

Almost surely, 2^78286879763 is an apocalyptic number.

78286879763 is a deficient number, since it is larger than the sum of its proper divisors (3403777405).

78286879763 is a wasteful number, since it uses less digits than its factorization.

78286879763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403777404.

The product of its digits is 341397504, while the sum is 71.

The spelling of 78286879763 in words is "seventy-eight billion, two hundred eighty-six million, eight hundred seventy-nine thousand, seven hundred sixty-three".