2647642662 has 96 divisors (see below), whose sum is σ = 6986820672. Its totient is φ = 707346432.

The previous prime is 2647642649. The next prime is 2647642693. The reversal of 2647642662 is 2662467462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 332358 + ... + 340230.

It is an arithmetic number, because the mean of its divisors is an integer number (72779382).

Almost surely, 2^2647642662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2647642662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3493410336).

2647642662 is an abundant number, since it is smaller than the sum of its proper divisors (4339178010).

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

2647642662 is a wasteful number, since it uses less digits than its factorization.

2647642662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8062 (or 8059 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 2647642662 is about 51455.2491199877. The cubic root of 2647642662 is about 1383.4170486844.

The spelling of 2647642662 in words is "two billion, six hundred forty-seven million, six hundred forty-two thousand, six hundred sixty-two".