612611112611 has 4 divisors (see below), whose sum is σ = 612674929224. Its totient is φ = 612547296000.

The previous prime is 612611112587. The next prime is 612611112629. The reversal of 612611112611 is 116211116216.

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

It is a cyclic number.

It is not a de Polignac number, because 612611112611 - 2¹⁰ = 612611111587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612611112511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31893905 + ... + 31913106.

It is an arithmetic number, because the mean of its divisors is an integer number (153168732306).

Almost surely, 2^612611112611 is an apocalyptic number.

612611112611 is a deficient number, since it is larger than the sum of its proper divisors (63816613).

612611112611 is an equidigital number, since it uses as much as digits as its factorization.

612611112611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63816612.

The product of its digits is 864, while the sum is 29.

Adding to 612611112611 its reverse (116211116216), we get a palindrome (728822228827).

The spelling of 612611112611 in words is "six hundred twelve billion, six hundred eleven million, one hundred twelve thousand, six hundred eleven".