6776939520 has 528 divisors, whose sum is σ = 26287410240. Its totient is φ = 1664188416.

The previous prime is 6776939503. The next prime is 6776939531. The reversal of 6776939520 is 259396776.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16173871 + ... + 16174289.

Almost surely, 2^6776939520 is an apocalyptic number.

6776939520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6776939520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13143705120).

6776939520 is an abundant number, since it is smaller than the sum of its proper divisors (19510470720).

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

6776939520 is a wasteful number, since it uses less digits than its factorization.

6776939520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 6776939520 is about 82322.1690676333. The cubic root of 6776939520 is about 1892.3924351378.

The spelling of 6776939520 in words is "six billion, seven hundred seventy-six million, nine hundred thirty-nine thousand, five hundred twenty".