8771649345 has 48 divisors (see below), whose sum is σ = 16050303360. Its totient is φ = 4419283968.

The previous prime is 8771649251. The next prime is 8771649353. The reversal of 8771649345 is 5439461778.

8771649345 is a `hidden beast` number, since 87 + 71 + 6 + 493 + 4 + 5 = 666.

It is not a de Polignac number, because 8771649345 - 2²² = 8767455041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8771649291 and 8771649300.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287284 + ... + 316346.

It is an arithmetic number, because the mean of its divisors is an integer number (334381320).

Almost surely, 2^8771649345 is an apocalyptic number.

It is an amenable number.

8771649345 is a deficient number, since it is larger than the sum of its proper divisors (7278654015).

8771649345 is a wasteful number, since it uses less digits than its factorization.

8771649345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29446 (or 29443 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 8771649345 is about 93657.0837950873. The cubic root of 8771649345 is about 2062.3407383361.

The spelling of 8771649345 in words is "eight billion, seven hundred seventy-one million, six hundred forty-nine thousand, three hundred forty-five".