616626386847 has 12 divisors (see below), whose sum is σ = 891013333704. Its totient is φ = 410931592560.

The previous prime is 616626386801. The next prime is 616626386921. The reversal of 616626386847 is 748683626616.

616626386847 is a `hidden beast` number, since 616 + 6 + 2 + 6 + 3 + 8 + 6 + 8 + 4 + 7 = 666.

It is not a de Polignac number, because 616626386847 - 2³⁵ = 582266648479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616626366847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12696529 + ... + 12745002.

It is an arithmetic number, because the mean of its divisors is an integer number (74251111142).

Almost surely, 2^616626386847 is an apocalyptic number.

616626386847 is a deficient number, since it is larger than the sum of its proper divisors (274386946857).

616626386847 is a wasteful number, since it uses less digits than its factorization.

616626386847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25444230 (or 25444227 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 616626386847 in words is "six hundred sixteen billion, six hundred twenty-six million, three hundred eighty-six thousand, eight hundred forty-seven".