8477765616761 has 32 divisors (see below), whose sum is σ = 9962059887360. Its totient is φ = 7062219622656.

The previous prime is 8477765616737. The next prime is 8477765616769. The reversal of 8477765616761 is 1676165677748.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8477765616761 is a prime.

It is a super-2 number, since 2×8477765616761² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8477765616769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174364810 + ... + 1174372028.

It is an arithmetic number, because the mean of its divisors is an integer number (311314371480).

Almost surely, 2^{8477765616761} is an apocalyptic number.

It is an amenable number.

8477765616761 is a deficient number, since it is larger than the sum of its proper divisors (1484294270599).

8477765616761 is a wasteful number, since it uses less digits than its factorization.

8477765616761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11793.

The product of its digits is 497871360, while the sum is 71.

The spelling of 8477765616761 in words is "eight trillion, four hundred seventy-seven billion, seven hundred sixty-five million, six hundred sixteen thousand, seven hundred sixty-one".