8642198763 has 24 divisors (see below), whose sum is σ = 13641067440. Its totient is φ = 5228828160.

The previous prime is 8642198749. The next prime is 8642198797. The reversal of 8642198763 is 3678912468.

8642198763 is a `hidden beast` number, since 86 + 421 + 9 + 87 + 63 = 666.

It is not a de Polignac number, because 8642198763 - 2¹² = 8642194667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8642198723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14898 + ... + 132311.

It is an arithmetic number, because the mean of its divisors is an integer number (568377810).

Almost surely, 2^8642198763 is an apocalyptic number.

8642198763 is a deficient number, since it is larger than the sum of its proper divisors (4998868677).

8642198763 is a wasteful number, since it uses less digits than its factorization.

8642198763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147819 (or 147816 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 8642198763 is about 92963.4270183710. The cubic root of 8642198763 is about 2052.1451875373.

The spelling of 8642198763 in words is "eight billion, six hundred forty-two million, one hundred ninety-eight thousand, seven hundred sixty-three".