6776246520 has 48 divisors (see below), whose sum is σ = 22022802360. Its totient is φ = 1806998976.

The previous prime is 6776246513. The next prime is 6776246527. The reversal of 6776246520 is 256426776.

6776246520 is a `hidden beast` number, since 67 + 7 + 62 + 4 + 6 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (6776246513) and next prime (6776246527).

It is a super-2 number, since 2×6776246520² = 91835033799624220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6776246527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9411094 + ... + 9411813.

Almost surely, 2^6776246520 is an apocalyptic number.

6776246520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6776246520 is an abundant number, since it is smaller than the sum of its proper divisors (15246555840).

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

6776246520 is a wasteful number, since it uses less digits than its factorization.

6776246520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822924 (or 18822917 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 6776246520 is about 82317.9598872567. The cubic root of 6776246520 is about 1892.3279285043.

The spelling of 6776246520 in words is "six billion, seven hundred seventy-six million, two hundred forty-six thousand, five hundred twenty".