8477759647 has 12 divisors (see below), whose sum is σ = 9863451000. Its totient is φ = 7265496336.

The previous prime is 8477759639. The next prime is 8477759657. The reversal of 8477759647 is 7469577748.

It is not a de Polignac number, because 8477759647 - 2³ = 8477759639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8477759617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468828 + ... + 486574.

It is an arithmetic number, because the mean of its divisors is an integer number (821954250).

Almost surely, 2^8477759647 is an apocalyptic number.

8477759647 is a deficient number, since it is larger than the sum of its proper divisors (1385691353).

8477759647 is a wasteful number, since it uses less digits than its factorization.

8477759647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27510 (or 27503 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 64.

The square root of 8477759647 is about 92074.7503227676. The cubic root of 8477759647 is about 2039.0460462721.

The spelling of 8477759647 in words is "eight billion, four hundred seventy-seven million, seven hundred fifty-nine thousand, six hundred forty-seven".