616621524287 has 2 divisors, whose sum is σ = 616621524288. Its totient is φ = 616621524286.

The previous prime is 616621524283. The next prime is 616621524313. The reversal of 616621524287 is 782425126616.

616621524287 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 is a cyclic number.

It is not a de Polignac number, because 616621524287 - 2² = 616621524283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616621524283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308310762143 + 308310762144.

It is an arithmetic number, because the mean of its divisors is an integer number (308310762144).

Almost surely, 2^616621524287 is an apocalyptic number.

616621524287 is a deficient number, since it is larger than the sum of its proper divisors (1).

616621524287 is an equidigital number, since it uses as much as digits as its factorization.

616621524287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The spelling of 616621524287 in words is "six hundred sixteen billion, six hundred twenty-one million, five hundred twenty-four thousand, two hundred eighty-seven".