8645081898 has 32 divisors (see below), whose sum is σ = 18161436672. Its totient is φ = 2738142000.

The previous prime is 8645081881. The next prime is 8645081903. The reversal of 8645081898 is 8981805468.

It is a super-3 number, since 3×8645081898³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186598 + ... + 228273.

It is an arithmetic number, because the mean of its divisors is an integer number (567544896).

Almost surely, 2^8645081898 is an apocalyptic number.

8645081898 is an abundant number, since it is smaller than the sum of its proper divisors (9516354774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8645081898 is a wasteful number, since it uses less digits than its factorization.

8645081898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415050.

The product of its (nonzero) digits is 4423680, while the sum is 57.

The square root of 8645081898 is about 92978.9325492609. The cubic root of 8645081898 is about 2052.3733684262.

The spelling of 8645081898 in words is "eight billion, six hundred forty-five million, eighty-one thousand, eight hundred ninety-eight".