78260797886 has 8 divisors (see below), whose sum is σ = 117917615424. Its totient is φ = 38954926080.

The previous prime is 78260797883. The next prime is 78260797891. The reversal of 78260797886 is 68879706287.

It is a happy number.

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

It is a super-5 number, since 5×78260797886⁵ (a number of 56 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78260797883) 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, 87735875 + ... + 87736766.

It is an arithmetic number, because the mean of its divisors is an integer number (14739701928).

Almost surely, 2^78260797886 is an apocalyptic number.

78260797886 is a deficient number, since it is larger than the sum of its proper divisors (39656817538).

78260797886 is a wasteful number, since it uses less digits than its factorization.

78260797886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175472866.

The product of its (nonzero) digits is 113799168, while the sum is 68.

The spelling of 78260797886 in words is "seventy-eight billion, two hundred sixty million, seven hundred ninety-seven thousand, eight hundred eighty-six".