78830260887611 has 4 divisors (see below), whose sum is σ = 79121147459424. Its totient is φ = 78539374315800.

The previous prime is 78830260887577. The next prime is 78830260887619. The reversal of 78830260887611 is 11678806203887.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78830260887611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78830260887619) 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, 145443285500 + ... + 145443286041.

It is an arithmetic number, because the mean of its divisors is an integer number (19780286864856).

Almost surely, 2^{78830260887611} is an apocalyptic number.

78830260887611 is a deficient number, since it is larger than the sum of its proper divisors (290886571813).

78830260887611 is a wasteful number, since it uses less digits than its factorization.

78830260887611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290886571812.

The product of its (nonzero) digits is 43352064, while the sum is 65.

The spelling of 78830260887611 in words is "seventy-eight trillion, eight hundred thirty billion, two hundred sixty million, eight hundred eighty-seven thousand, six hundred eleven".