2643451630 has 16 divisors (see below), whose sum is σ = 4874267664. Its totient is φ = 1031590720.

The previous prime is 2643451619. The next prime is 2643451633. The reversal of 2643451630 is 361543462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643451633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223312 + ... + 3224131.

It is an arithmetic number, because the mean of its divisors is an integer number (304641729).

Almost surely, 2^2643451630 is an apocalyptic number.

2643451630 is a deficient number, since it is larger than the sum of its proper divisors (2230816034).

2643451630 is a wasteful number, since it uses less digits than its factorization.

2643451630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447491.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2643451630 is about 51414.5079719723. The cubic root of 2643451630 is about 1382.6867125829.

The spelling of 2643451630 in words is "two billion, six hundred forty-three million, four hundred fifty-one thousand, six hundred thirty".