6786541989 has 40 divisors (see below), whose sum is σ = 10597067712. Its totient is φ = 4320138240.

The previous prime is 6786541987. The next prime is 6786541991. The reversal of 6786541989 is 9891456876.

6786541989 is a `hidden beast` number, since 6 + 7 + 8 + 6 + 541 + 9 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (6786541987) and next prime (6786541991).

It is not a de Polignac number, because 6786541989 - 2¹ = 6786541987 is a prime.

It is a super-2 number, since 2×6786541989² = 92114304336920152242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6786541987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1191342 + ... + 1197024.

Almost surely, 2^6786541989 is an apocalyptic number.

6786541989 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6786541989 is a deficient number, since it is larger than the sum of its proper divisors (3810525723).

6786541989 is a wasteful number, since it uses less digits than its factorization.

6786541989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359 (or 6350 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 6786541989 is about 82380.4709199941. The cubic root of 6786541989 is about 1893.2858110599.

The spelling of 6786541989 in words is "six billion, seven hundred eighty-six million, five hundred forty-one thousand, nine hundred eighty-nine".