6512819380081 has 16 divisors (see below), whose sum is σ = 7581442078080. Its totient is φ = 5479143598080.

The previous prime is 6512819380063. The next prime is 6512819380091. The reversal of 6512819380081 is 1800839182156.

It is a cyclic number.

It is not a de Polignac number, because 6512819380081 - 2¹⁵ = 6512819347313 is a prime.

It is a super-2 number, since 2×6512819380081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6512819380021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16130896 + ... + 16529713.

It is an arithmetic number, because the mean of its divisors is an integer number (473840129880).

Almost surely, 2^{6512819380081} is an apocalyptic number.

6512819380081 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6512819380081 is a deficient number, since it is larger than the sum of its proper divisors (1068622697999).

6512819380081 is a wasteful number, since it uses less digits than its factorization.

6512819380081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32661144.

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 6512819380081 in words is "six trillion, five hundred twelve billion, eight hundred nineteen million, three hundred eighty thousand, eighty-one".