6460781055 has 16 divisors (see below), whose sum is σ = 10354521600. Its totient is φ = 3439992608.

The previous prime is 6460781051. The next prime is 6460781057. The reversal of 6460781055 is 5501870646.

It is a cyclic number.

It is not a de Polignac number, because 6460781055 - 2² = 6460781051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6460780998 and 6460781016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6460781051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350547 + ... + 368516.

It is an arithmetic number, because the mean of its divisors is an integer number (647157600).

Almost surely, 2^6460781055 is an apocalyptic number.

6460781055 is a deficient number, since it is larger than the sum of its proper divisors (3893740545).

6460781055 is a wasteful number, since it uses less digits than its factorization.

6460781055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719670.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 6460781055 is about 80378.9839137072. The cubic root of 6460781055 is about 1862.4945385483.

The spelling of 6460781055 in words is "six billion, four hundred sixty million, seven hundred eighty-one thousand, fifty-five".