13213259640 has 144 divisors (see below), whose sum is σ = 49954277880. Its totient is φ = 3020169600.

The previous prime is 13213259621. The next prime is 13213259651. The reversal of 13213259640 is 4695231231.

13213259640 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 3 + 2 + 5 + 9 + 640 = 666.

13213259640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13213259595 and 13213259604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 356886 + ... + 392165.

Almost surely, 2^13213259640 is an apocalyptic number.

13213259640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213259640 is an abundant number, since it is smaller than the sum of its proper divisors (36741018240).

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

13213259640 is a wasteful number, since it uses less digits than its factorization.

13213259640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749082 (or 749068 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 13213259640 in words is "thirteen billion, two hundred thirteen million, two hundred fifty-nine thousand, six hundred forty".