2047644650 has 12 divisors (see below), whose sum is σ = 3808619142. Its totient is φ = 819057840.

The previous prime is 2047644617. The next prime is 2047644659. The reversal of 2047644650 is 564467402.

It can be written as a sum of positive squares in 3 ways, for example, as 1923611881 + 124032769 = 43859^2 + 11137^2 .

It is a super-2 number, since 2×2047644650² = 8385697225347245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2047644659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20476397 + ... + 20476496.

Almost surely, 2^2047644650 is an apocalyptic number.

2047644650 is a deficient number, since it is larger than the sum of its proper divisors (1760974492).

2047644650 is a wasteful number, since it uses less digits than its factorization.

2047644650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40952905 (or 40952900 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 2047644650 is about 45250.9077257020. The cubic root of 2047644650 is about 1269.8473890235.

The spelling of 2047644650 in words is "two billion, forty-seven million, six hundred forty-four thousand, six hundred fifty".