12654220887 has 48 divisors (see below), whose sum is σ = 22820808192. Its totient is φ = 6564317760.

The previous prime is 12654220877. The next prime is 12654220889. The reversal of 12654220887 is 78802245621.

12654220887 is a `hidden beast` number, since 1 + 2 + 6 + 542 + 20 + 8 + 87 = 666.

It is not a de Polignac number, because 12654220887 - 2¹⁶ = 12654155351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12654220889) 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, 491253 + ... + 516369.

It is an arithmetic number, because the mean of its divisors is an integer number (475433504).

Almost surely, 2^12654220887 is an apocalyptic number.

12654220887 is a deficient number, since it is larger than the sum of its proper divisors (10166587305).

12654220887 is a wasteful number, since it uses less digits than its factorization.

12654220887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25868 (or 25865 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 12654220887 in words is "twelve billion, six hundred fifty-four million, two hundred twenty thousand, eight hundred eighty-seven".