12895782087 has 48 divisors (see below), whose sum is σ = 19036613760. Its totient is φ = 7737944256.

The previous prime is 12895782073. The next prime is 12895782091. The reversal of 12895782087 is 78028759821.

It is not a de Polignac number, because 12895782087 - 2⁷ = 12895781959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12895784087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3897888 + ... + 3901194.

It is an arithmetic number, because the mean of its divisors is an integer number (396596120).

Almost surely, 2^12895782087 is an apocalyptic number.

12895782087 is a deficient number, since it is larger than the sum of its proper divisors (6140831673).

12895782087 is a wasteful number, since it uses less digits than its factorization.

12895782087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452 (or 3409 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 57.

The spelling of 12895782087 in words is "twelve billion, eight hundred ninety-five million, seven hundred eighty-two thousand, eighty-seven".