12987390468061 has 8 divisors (see below), whose sum is σ = 13081102524000. Its totient is φ = 12893682378000.

The previous prime is 12987390468007. The next prime is 12987390468097. The reversal of 12987390468061 is 16086409378921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12987390468061 - 2¹⁷ = 12987390336989 is a prime.

It is a super-2 number, since 2×12987390468061² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12987390467984 and 12987390468002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987390468001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5746311 + ... + 7680811.

It is an arithmetic number, because the mean of its divisors is an integer number (1635137815500).

Almost surely, 2^{12987390468061} is an apocalyptic number.

It is an amenable number.

12987390468061 is a deficient number, since it is larger than the sum of its proper divisors (93712055939).

12987390468061 is a wasteful number, since it uses less digits than its factorization.

12987390468061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982939.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 12987390468061 in words is "twelve trillion, nine hundred eighty-seven billion, three hundred ninety million, four hundred sixty-eight thousand, sixty-one".