10687381305 has 16 divisors (see below), whose sum is σ = 17129770944. Its totient is φ = 5689949760.

The previous prime is 10687381297. The next prime is 10687381349. The reversal of 10687381305 is 50318378601.

It is not a de Polignac number, because 10687381305 - 2³ = 10687381297 is a prime.

It is a super-2 number, since 2×10687381305² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 615334 + ... + 632463.

It is an arithmetic number, because the mean of its divisors is an integer number (1070610684).

Almost surely, 2^10687381305 is an apocalyptic number.

10687381305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10687381305 is a deficient number, since it is larger than the sum of its proper divisors (6442389639).

10687381305 is a wasteful number, since it uses less digits than its factorization.

10687381305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248376.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 10687381305 in words is "ten billion, six hundred eighty-seven million, three hundred eighty-one thousand, three hundred five".