6489742769982 has 48 divisors (see below), whose sum is σ = 14274608287680. Its totient is φ = 2130538176000.

The previous prime is 6489742769959. The next prime is 6489742770041. The reversal of 6489742769982 is 2899672479846.

6489742769982 is a `hidden beast` number, since 6 + 48 + 9 + 7 + 427 + 69 + 98 + 2 = 666.

It is a super-2 number, since 2×6489742769982² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5120319 + ... + 6260762.

It is an arithmetic number, because the mean of its divisors is an integer number (297387672660).

Almost surely, 2^{6489742769982} is an apocalyptic number.

6489742769982 is an abundant number, since it is smaller than the sum of its proper divisors (7784865517698).

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

6489742769982 is a wasteful number, since it uses less digits than its factorization.

6489742769982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381569 (or 11381566 counting only the distinct ones).

The product of its digits is 5267275776, while the sum is 81.

The spelling of 6489742769982 in words is "six trillion, four hundred eighty-nine billion, seven hundred forty-two million, seven hundred sixty-nine thousand, nine hundred eighty-two".