8638894810 has 64 divisors (see below), whose sum is σ = 19369228032. Its totient is φ = 2701103616.

The previous prime is 8638894769. The next prime is 8638894813. The reversal of 8638894810 is 184988368.

It is a super-2 number, since 2×8638894810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8638894813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18342 + ... + 132718.

It is an arithmetic number, because the mean of its divisors is an integer number (302644188).

Almost surely, 2^8638894810 is an apocalyptic number.

8638894810 is an abundant number, since it is smaller than the sum of its proper divisors (10730333222).

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

8638894810 is a wasteful number, since it uses less digits than its factorization.

8638894810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114487.

The product of its (nonzero) digits is 2654208, while the sum is 55.

The square root of 8638894810 is about 92945.6551432072. The cubic root of 8638894810 is about 2051.8836393036.

The spelling of 8638894810 in words is "eight billion, six hundred thirty-eight million, eight hundred ninety-four thousand, eight hundred ten".