2647213616 has 40 divisors (see below), whose sum is σ = 5466730464. Its totient is φ = 1237478400.

The previous prime is 2647213603. The next prime is 2647213643. The reversal of 2647213616 is 6163127462.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2647213616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8846 + ... + 73298.

Almost surely, 2^2647213616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2647213616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2733365232).

2647213616 is an abundant number, since it is smaller than the sum of its proper divisors (2819516848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2647213616 is a wasteful number, since it uses less digits than its factorization.

2647213616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64629 (or 64623 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 2647213616 is about 51451.0798331775. The cubic root of 2647213616 is about 1383.3423178526.

The spelling of 2647213616 in words is "two billion, six hundred forty-seven million, two hundred thirteen thousand, six hundred sixteen".