13630437650 has 24 divisors (see below), whose sum is σ = 26843945940. Its totient is φ = 5131458560.

The previous prime is 13630437637. The next prime is 13630437707. The reversal of 13630437650 is 5673403631.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9938295481 + 3692142169 = 99691^2 + 60763^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8017055 + ... + 8018754.

Almost surely, 2^13630437650 is an apocalyptic number.

13630437650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13630437650 is a deficient number, since it is larger than the sum of its proper divisors (13213508290).

13630437650 is a wasteful number, since it uses less digits than its factorization.

13630437650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16035838 (or 16035833 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 13630437650 in words is "thirteen billion, six hundred thirty million, four hundred thirty-seven thousand, six hundred fifty".