8861761544 has 32 divisors (see below), whose sum is σ = 16949113920. Its totient is φ = 4342193856.

The previous prime is 8861761529. The next prime is 8861761589. The reversal of 8861761544 is 4451671688.

It is a junction number, because it is equal to n+sod(n) for n = 8861761492 and 8861761501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364307 + ... + 387869.

It is an arithmetic number, because the mean of its divisors is an integer number (529659810).

Almost surely, 2^8861761544 is an apocalyptic number.

It is an amenable number.

8861761544 is a deficient number, since it is larger than the sum of its proper divisors (8087352376).

8861761544 is a wasteful number, since it uses less digits than its factorization.

8861761544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24509 (or 24505 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 8861761544 is about 94136.9297566051. The cubic root of 8861761544 is about 2069.3789157864.

The spelling of 8861761544 in words is "eight billion, eight hundred sixty-one million, seven hundred sixty-one thousand, five hundred forty-four".