13087641860 has 12 divisors (see below), whose sum is σ = 27484047948. Its totient is φ = 5235056736.

The previous prime is 13087641859. The next prime is 13087641899. The reversal of 13087641860 is 6814678031.

It can be written as a sum of positive squares in 2 ways, for example, as 1785400516 + 11302241344 = 42254^2 + 106312^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327191027 + ... + 327191066.

It is an arithmetic number, because the mean of its divisors is an integer number (2290337329).

Almost surely, 2^13087641860 is an apocalyptic number.

13087641860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13087641860 is an abundant number, since it is smaller than the sum of its proper divisors (14396406088).

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

13087641860 is a wasteful number, since it uses less digits than its factorization.

13087641860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654382102 (or 654382100 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 13087641860 in words is "thirteen billion, eighty-seven million, six hundred forty-one thousand, eight hundred sixty".