79999900011111 has 8 divisors (see below), whose sum is σ = 106806699623664. Its totient is φ = 53263183536320.

The previous prime is 79999900011103. The next prime is 79999900011121. The reversal of 79999900011111 is 11111000999997.

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 79999900011111 - 2³ = 79999900011103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79999900011121) 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, 17520781776 + ... + 17520786341.

It is an arithmetic number, because the mean of its divisors is an integer number (13350837452958).

Almost surely, 2^{79999900011111} is an apocalyptic number.

79999900011111 is a deficient number, since it is larger than the sum of its proper divisors (26806799612553).

79999900011111 is a wasteful number, since it uses less digits than its factorization.

79999900011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35041568881.

The product of its (nonzero) digits is 413343, while the sum is 57.

The spelling of 79999900011111 in words is "seventy-nine trillion, nine hundred ninety-nine billion, nine hundred million, eleven thousand, one hundred eleven".