2616647385 has 24 divisors (see below), whose sum is σ = 4601842560. Its totient is φ = 1268676640.

The previous prime is 2616647357. The next prime is 2616647431. The reversal of 2616647385 is 5837466162.

It is not a de Polignac number, because 2616647385 - 2⁶ = 2616647321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 719025 + ... + 722654.

It is an arithmetic number, because the mean of its divisors is an integer number (191743440).

Almost surely, 2^2616647385 is an apocalyptic number.

It is an amenable number.

2616647385 is a deficient number, since it is larger than the sum of its proper divisors (1985195175).

2616647385 is a wasteful number, since it uses less digits than its factorization.

2616647385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441709 (or 1441698 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 2616647385 is about 51153.1757078678. The cubic root of 2616647385 is about 1377.9974077708.

The spelling of 2616647385 in words is "two billion, six hundred sixteen million, six hundred forty-seven thousand, three hundred eighty-five".