612564217747 has 2 divisors, whose sum is σ = 612564217748. Its totient is φ = 612564217746.

The previous prime is 612564217697. The next prime is 612564217789. The reversal of 612564217747 is 747712465216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612564217747 - 2¹⁵ = 612564184979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612564217694 and 612564217703.

It is not a weakly prime, because it can be changed into another prime (612564247747) 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 as a sum of consecutive naturals, namely, 306282108873 + 306282108874.

It is an arithmetic number, because the mean of its divisors is an integer number (306282108874).

Almost surely, 2^612564217747 is an apocalyptic number.

612564217747 is a deficient number, since it is larger than the sum of its proper divisors (1).

612564217747 is an equidigital number, since it uses as much as digits as its factorization.

612564217747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3951360, while the sum is 52.

The spelling of 612564217747 in words is "six hundred twelve billion, five hundred sixty-four million, two hundred seventeen thousand, seven hundred forty-seven".