6779434480 has 80 divisors (see below), whose sum is σ = 19399633344. Its totient is φ = 2145576960.

The previous prime is 6779434433. The next prime is 6779434499. The reversal of 6779434480 is 844349776.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6779434480² = 91921463737225740800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 458341 + ... + 472900.

Almost surely, 2^6779434480 is an apocalyptic number.

It is an amenable number.

6779434480 is an abundant number, since it is smaller than the sum of its proper divisors (12620198864).

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

6779434480 is a wasteful number, since it uses less digits than its factorization.

6779434480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931274 (or 931268 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The square root of 6779434480 is about 82337.3213069262. The cubic root of 6779434480 is about 1892.6246375023.

The spelling of 6779434480 in words is "six billion, seven hundred seventy-nine million, four hundred thirty-four thousand, four hundred eighty".