6761047755609 has 18 divisors (see below), whose sum is σ = 11360399971050. Its totient is φ = 3863455860096.

The previous prime is 6761047755563. The next prime is 6761047755611. The reversal of 6761047755609 is 9065577401676.

6761047755609 is a `hidden beast` number, since 6 + 7 + 6 + 1 + 0 + 4 + 77 + 556 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6570840123225 + 190207632384 = 2563365^2 + 436128^2 .

It is not a de Polignac number, because 6761047755609 - 2⁷ = 6761047755481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6761047755409) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7665586584 + ... + 7665587465.

It is an arithmetic number, because the mean of its divisors is an integer number (631133331725).

Almost surely, 2^{6761047755609} is an apocalyptic number.

It is an amenable number.

6761047755609 is a deficient number, since it is larger than the sum of its proper divisors (4599352215441).

6761047755609 is a wasteful number, since it uses less digits than its factorization.

6761047755609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15331174069 (or 15331174059 counting only the distinct ones).

The product of its (nonzero) digits is 66679200, while the sum is 63.

The spelling of 6761047755609 in words is "six trillion, seven hundred sixty-one billion, forty-seven million, seven hundred fifty-five thousand, six hundred nine".