612611112811 has 4 divisors (see below), whose sum is σ = 629168169952. Its totient is φ = 596054055672.

The previous prime is 612611112809. The next prime is 612611112853. The reversal of 612611112811 is 118211116216.

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 612611112811 - 2¹ = 612611112809 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8278528515 + ... + 8278528588.

It is an arithmetic number, because the mean of its divisors is an integer number (157292042488).

Almost surely, 2^612611112811 is an apocalyptic number.

612611112811 is a deficient number, since it is larger than the sum of its proper divisors (16557057141).

612611112811 is a wasteful number, since it uses less digits than its factorization.

612611112811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16557057140.

The product of its digits is 1152, while the sum is 31.

The spelling of 612611112811 in words is "six hundred twelve billion, six hundred eleven million, one hundred twelve thousand, eight hundred eleven".