616736219069 has 2 divisors, whose sum is σ = 616736219070. Its totient is φ = 616736219068.

The previous prime is 616736219051. The next prime is 616736219089. The reversal of 616736219069 is 960912637616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548895765625 + 67840453444 = 740875^2 + 260462^2 .

It is a cyclic number.

It is not a de Polignac number, because 616736219069 - 2³⁶ = 548016742333 is a prime.

It is a super-2 number, since 2×616736219069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616736219089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308368109534 + 308368109535.

It is an arithmetic number, because the mean of its divisors is an integer number (308368109535).

Almost surely, 2^616736219069 is an apocalyptic number.

It is an amenable number.

616736219069 is a deficient number, since it is larger than the sum of its proper divisors (1).

616736219069 is an equidigital number, since it uses as much as digits as its factorization.

616736219069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 616736219069 in words is "six hundred sixteen billion, seven hundred thirty-six million, two hundred nineteen thousand, sixty-nine".