6487989828786 has 12 divisors (see below), whose sum is σ = 14057311295742. Its totient is φ = 2162663276256.

The previous prime is 6487989828773. The next prime is 6487989828811. The reversal of 6487989828786 is 6878289897846.

6487989828786 is a `hidden beast` number, since 6 + 4 + 87 + 98 + 98 + 287 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6441093760761 + 46896068025 = 2537931^2 + 216555^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6487989828696 and 6487989828705.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180221939671 + ... + 180221939706.

Almost surely, 2^{6487989828786} is an apocalyptic number.

6487989828786 is an abundant number, since it is smaller than the sum of its proper divisors (7569321466956).

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

6487989828786 is a wasteful number, since it uses less digits than its factorization.

6487989828786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360443879385 (or 360443879382 counting only the distinct ones).

The product of its digits is 37456183296, while the sum is 90.

The spelling of 6487989828786 in words is "six trillion, four hundred eighty-seven billion, nine hundred eighty-nine million, eight hundred twenty-eight thousand, seven hundred eighty-six".