8461668834 has 16 divisors (see below), whose sum is σ = 18803708640. Its totient is φ = 2820556260.

The previous prime is 8461668823. The next prime is 8461668869. The reversal of 8461668834 is 4388661648.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 156697571 = 8461668834 / (8 + 4 + 6 + 1 + 6 + 6 + 8 + 8 + 3 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78348732 + ... + 78348839.

It is an arithmetic number, because the mean of its divisors is an integer number (1175231790).

Almost surely, 2^8461668834 is an apocalyptic number.

8461668834 is an abundant number, since it is smaller than the sum of its proper divisors (10342039806).

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

8461668834 is a wasteful number, since it uses less digits than its factorization.

8461668834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156697582 (or 156697576 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 8461668834 is about 91987.3297470907. The cubic root of 8461668834 is about 2037.7551907600.

The spelling of 8461668834 in words is "eight billion, four hundred sixty-one million, six hundred sixty-eight thousand, eight hundred thirty-four".