6478666934061 has 16 divisors (see below), whose sum is σ = 9873224756864. Its totient is φ = 3701731497984.

The previous prime is 6478666934057. The next prime is 6478666934063. The reversal of 6478666934061 is 1604396668746.

It is not a de Polignac number, because 6478666934061 - 2² = 6478666934057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6478666933983 and 6478666934001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478666934063) 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, 14943400 + ... + 15370833.

It is an arithmetic number, because the mean of its divisors is an integer number (617076547304).

Almost surely, 2^{6478666934061} is an apocalyptic number.

It is an amenable number.

6478666934061 is a deficient number, since it is larger than the sum of its proper divisors (3394557822803).

6478666934061 is a wasteful number, since it uses less digits than its factorization.

6478666934061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30324420.

The product of its (nonzero) digits is 188116992, while the sum is 66.

The spelling of 6478666934061 in words is "six trillion, four hundred seventy-eight billion, six hundred sixty-six million, nine hundred thirty-four thousand, sixty-one".