612936198617 has 2 divisors, whose sum is σ = 612936198618. Its totient is φ = 612936198616.

The previous prime is 612936198577. The next prime is 612936198649. The reversal of 612936198617 is 716891639216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489816617161 + 123119581456 = 699869^2 + 350884^2 .

It is a cyclic number.

It is not a de Polignac number, because 612936198617 - 2²² = 612932004313 is a prime.

It is a super-3 number, since 3×612936198617³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (612936398617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306468099308 + 306468099309.

It is an arithmetic number, because the mean of its divisors is an integer number (306468099309).

Almost surely, 2^612936198617 is an apocalyptic number.

It is an amenable number.

612936198617 is a deficient number, since it is larger than the sum of its proper divisors (1).

612936198617 is an equidigital number, since it uses as much as digits as its factorization.

612936198617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 59.

The spelling of 612936198617 in words is "six hundred twelve billion, nine hundred thirty-six million, one hundred ninety-eight thousand, six hundred seventeen".