616812773128 has 64 divisors (see below), whose sum is σ = 1212093020160. Its totient is φ = 293972594496.

The previous prime is 616812773119. The next prime is 616812773141. The reversal of 616812773128 is 821377218616.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5555325 + ... + 5665267.

It is an arithmetic number, because the mean of its divisors is an integer number (18938953440).

Almost surely, 2^616812773128 is an apocalyptic number.

It is an amenable number.

616812773128 is a deficient number, since it is larger than the sum of its proper divisors (595280247032).

616812773128 is a wasteful number, since it uses less digits than its factorization.

616812773128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110386 (or 110382 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The spelling of 616812773128 in words is "six hundred sixteen billion, eight hundred twelve million, seven hundred seventy-three thousand, one hundred twenty-eight".