12630646450 has 24 divisors (see below), whose sum is σ = 23735207412. Its totient is φ = 5000171520.

The previous prime is 12630646433. The next prime is 12630646471. The reversal of 12630646450 is 5464603621.

It can be written as a sum of positive squares in 6 ways, for example, as 8161857649 + 4468788801 = 90343^2 + 66849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1297279 + ... + 1306978.

Almost surely, 2^12630646450 is an apocalyptic number.

12630646450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12630646450 is a deficient number, since it is larger than the sum of its proper divisors (11104560962).

12630646450 is a wasteful number, since it uses less digits than its factorization.

12630646450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604366 (or 2604361 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 12630646450 in words is "twelve billion, six hundred thirty million, six hundred forty-six thousand, four hundred fifty".