8610813994 has 4 divisors (see below), whose sum is σ = 12916220994. Its totient is φ = 4305406996.

The previous prime is 8610813977. The next prime is 8610813997. The reversal of 8610813994 is 4993180168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8438810769 + 172003225 = 91863^2 + 13115^2 .

It is a super-2 number, since 2×8610813994² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8610813997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2152703497 + ... + 2152703500.

Almost surely, 2^8610813994 is an apocalyptic number.

8610813994 is a deficient number, since it is larger than the sum of its proper divisors (4305407000).

8610813994 is a wasteful number, since it uses less digits than its factorization.

8610813994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305406999.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 8610813994 is about 92794.4717857697. The cubic root of 8610813994 is about 2049.6580031509.

The spelling of 8610813994 in words is "eight billion, six hundred ten million, eight hundred thirteen thousand, nine hundred ninety-four".