13263436530 has 40 divisors (see below), whose sum is σ = 35663909292. Its totient is φ = 3536916192.

The previous prime is 13263436481. The next prime is 13263436541. The reversal of 13263436530 is 3563436231.

13263436530 is a `hidden beast` number, since 1 + 3 + 263 + 4 + 365 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12408400449 + 855036081 = 111393^2 + 29241^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8186497 + ... + 8188116.

Almost surely, 2^13263436530 is an apocalyptic number.

13263436530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13263436530 is an abundant number, since it is smaller than the sum of its proper divisors (22400472762).

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

13263436530 is a wasteful number, since it uses less digits than its factorization.

13263436530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374632 (or 16374623 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The spelling of 13263436530 in words is "thirteen billion, two hundred sixty-three million, four hundred thirty-six thousand, five hundred thirty".