6511000477 has 2 divisors, whose sum is σ = 6511000478. Its totient is φ = 6511000476.

The previous prime is 6511000469. The next prime is 6511000553. The reversal of 6511000477 is 7740001156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3421197081 + 3089803396 = 58491^2 + 55586^2 .

It is a cyclic number.

It is not a de Polignac number, because 6511000477 - 2³ = 6511000469 is a prime.

It is a super-2 number, since 2×6511000477² = 84786254422988455058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6511000417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255500238 + 3255500239.

It is an arithmetic number, because the mean of its divisors is an integer number (3255500239).

Almost surely, 2^6511000477 is an apocalyptic number.

It is an amenable number.

6511000477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6511000477 is an equidigital number, since it uses as much as digits as its factorization.

6511000477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 6511000477 is about 80690.7707052052. The cubic root of 6511000477 is about 1867.3077902591.

The spelling of 6511000477 in words is "six billion, five hundred eleven million, four hundred seventy-seven", and thus it is an aban number.