13061908215 has 24 divisors (see below), whose sum is σ = 22649150160. Its totient is φ = 6963732864.

The previous prime is 13061908193. The next prime is 13061908243. The reversal of 13061908215 is 51280916031.

13061908215 is a `hidden beast` number, since 1 + 30 + 619 + 0 + 8 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 13061908215 - 2¹⁰ = 13061907191 is a prime.

It is a super-2 number, since 2×13061908215² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13061908215.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 69624 + ... + 175986.

It is an arithmetic number, because the mean of its divisors is an integer number (943714590).

Almost surely, 2^13061908215 is an apocalyptic number.

13061908215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13061908215 is a deficient number, since it is larger than the sum of its proper divisors (9587241945).

13061908215 is a wasteful number, since it uses less digits than its factorization.

13061908215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109103 (or 109100 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 13061908215 in words is "thirteen billion, sixty-one million, nine hundred eight thousand, two hundred fifteen".