78704720111 has 8 divisors (see below), whose sum is σ = 80394211584. Its totient is φ = 77015850520.

The previous prime is 78704720071. The next prime is 78704720117. The reversal of 78704720111 is 11102740787.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78704720111 is a prime.

It is a super-3 number, since 3×78704720111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78704720117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104996 + ... + 410406.

It is an arithmetic number, because the mean of its divisors is an integer number (10049276448).

Almost surely, 2^78704720111 is an apocalyptic number.

78704720111 is a deficient number, since it is larger than the sum of its proper divisors (1689491473).

78704720111 is a wasteful number, since it uses less digits than its factorization.

78704720111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310941.

The product of its (nonzero) digits is 21952, while the sum is 38.

The spelling of 78704720111 in words is "seventy-eight billion, seven hundred four million, seven hundred twenty thousand, one hundred eleven".