6520836078 has 12 divisors (see below), whose sum is σ = 14128478208. Its totient is φ = 2173612020.

The previous prime is 6520836029. The next prime is 6520836083. The reversal of 6520836078 is 8706380256.

It is a super-2 number, since 2×6520836078² = 85042606312292844168, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 181134318 + ... + 181134353.

It is an arithmetic number, because the mean of its divisors is an integer number (1177373184).

Almost surely, 2^6520836078 is an apocalyptic number.

6520836078 is an abundant number, since it is smaller than the sum of its proper divisors (7607642130).

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

6520836078 is a wasteful number, since it uses less digits than its factorization.

6520836078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362268679 (or 362268676 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6520836078 is about 80751.6939636563. The cubic root of 6520836078 is about 1868.2475769154.

The spelling of 6520836078 in words is "six billion, five hundred twenty million, eight hundred thirty-six thousand, seventy-eight".