8540661308 has 12 divisors (see below), whose sum is σ = 15350107752. Its totient is φ = 4154916240.

The previous prime is 8540661287. The next prime is 8540661317. The reversal of 8540661308 is 8031660458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28853438 + ... + 28853733.

It is an arithmetic number, because the mean of its divisors is an integer number (1279175646).

Almost surely, 2^8540661308 is an apocalyptic number.

It is an amenable number.

8540661308 is a deficient number, since it is larger than the sum of its proper divisors (6809446444).

8540661308 is a wasteful number, since it uses less digits than its factorization.

8540661308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57707212 (or 57707210 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 8540661308 is about 92415.6983850688. The cubic root of 8540661308 is about 2044.0765998665.

The spelling of 8540661308 in words is "eight billion, five hundred forty million, six hundred sixty-one thousand, three hundred eight".