614621574649 has 2 divisors, whose sum is σ = 614621574650. Its totient is φ = 614621574648.

The previous prime is 614621574643. The next prime is 614621574653. The reversal of 614621574649 is 946475126416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610992355600 + 3629219049 = 781660^2 + 60243^2 .

It is a cyclic number.

It is not a de Polignac number, because 614621574649 - 2⁷ = 614621574521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 614621574649.

It is not a weakly prime, because it can be changed into another prime (614621574643) 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, 307310787324 + 307310787325.

It is an arithmetic number, because the mean of its divisors is an integer number (307310787325).

Almost surely, 2^614621574649 is an apocalyptic number.

It is an amenable number.

614621574649 is a deficient number, since it is larger than the sum of its proper divisors (1).

614621574649 is an equidigital number, since it uses as much as digits as its factorization.

614621574649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The spelling of 614621574649 in words is "six hundred fourteen billion, six hundred twenty-one million, five hundred seventy-four thousand, six hundred forty-nine".