612936198577 has 2 divisors, whose sum is σ = 612936198578. Its totient is φ = 612936198576.

The previous prime is 612936198571. The next prime is 612936198617. The reversal of 612936198577 is 775891639216.

612936198577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357401904561 + 255534294016 = 597831^2 + 505504^2 .

It is a cyclic number.

It is not a de Polignac number, because 612936198577 - 2¹¹ = 612936196529 is a prime.

It is not a weakly prime, because it can be changed into another prime (612936198571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306468099288 + 306468099289.

It is an arithmetic number, because the mean of its divisors is an integer number (306468099289).

Almost surely, 2^612936198577 is an apocalyptic number.

It is an amenable number.

612936198577 is a deficient number, since it is larger than the sum of its proper divisors (1).

612936198577 is an equidigital number, since it uses as much as digits as its factorization.

612936198577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 64.

The spelling of 612936198577 in words is "six hundred twelve billion, nine hundred thirty-six million, one hundred ninety-eight thousand, five hundred seventy-seven".