12895947861 has 8 divisors (see below), whose sum is σ = 17270345184. Its totient is φ = 8559424560.

The previous prime is 12895947829. The next prime is 12895947877. The reversal of 12895947861 is 16874959821.

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

It is not a de Polignac number, because 12895947861 - 2⁵ = 12895947829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12895947795 and 12895947804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895947061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9467710 + ... + 9469071.

It is an arithmetic number, because the mean of its divisors is an integer number (2158793148).

Almost surely, 2^12895947861 is an apocalyptic number.

It is an amenable number.

12895947861 is a deficient number, since it is larger than the sum of its proper divisors (4374397323).

12895947861 is a wasteful number, since it uses less digits than its factorization.

12895947861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937011.

The product of its digits is 8709120, while the sum is 60.

The spelling of 12895947861 in words is "twelve billion, eight hundred ninety-five million, nine hundred forty-seven thousand, eight hundred sixty-one".