78001000111 has 8 divisors (see below), whose sum is σ = 81100293120. Its totient is φ = 74929014048.

The previous prime is 78001000031. The next prime is 78001000127. The reversal of 78001000111 is 11100010087.

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

It is a cyclic number.

It is not a de Polignac number, because 78001000111 - 2²⁵ = 77967445679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78001000171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6820911 + ... + 6832336.

It is an arithmetic number, because the mean of its divisors is an integer number (10137536640).

Almost surely, 2^78001000111 is an apocalyptic number.

78001000111 is a deficient number, since it is larger than the sum of its proper divisors (3099293009).

78001000111 is a wasteful number, since it uses less digits than its factorization.

78001000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13653473.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 78001000111 its reverse (11100010087), we get a palindrome (89101010198).

The spelling of 78001000111 in words is "seventy-eight billion, one million, one hundred eleven", and thus it is an aban number.