6517678755 has 32 divisors (see below), whose sum is σ = 11943014400. Its totient is φ = 2973267072.

The previous prime is 6517678721. The next prime is 6517678771. The reversal of 6517678755 is 5578767156.

It is not a de Polignac number, because 6517678755 - 2¹⁰ = 6517677731 is a prime.

It is a super-3 number, since 3×6517678755³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6517678695 and 6517678704.

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 31 ways as a sum of consecutive naturals, for example, 14500 + ... + 115089.

It is an arithmetic number, because the mean of its divisors is an integer number (373219200).

Almost surely, 2^6517678755 is an apocalyptic number.

6517678755 is a deficient number, since it is larger than the sum of its proper divisors (5425335645).

6517678755 is a wasteful number, since it uses less digits than its factorization.

6517678755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130083.

The product of its digits is 12348000, while the sum is 57.

The square root of 6517678755 is about 80732.1420191487. The cubic root of 6517678755 is about 1867.9459993644.

The spelling of 6517678755 in words is "six billion, five hundred seventeen million, six hundred seventy-eight thousand, seven hundred fifty-five".