8461381876 has 6 divisors (see below), whose sum is σ = 14807418290. Its totient is φ = 4230690936.

The previous prime is 8461381867. The next prime is 8461381993. The reversal of 8461381876 is 6781831648.

It can be written as a sum of positive squares in only one way, i.e., 5354434276 + 3106947600 = 73174^2 + 55740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057672731 + ... + 1057672738.

Almost surely, 2^8461381876 is an apocalyptic number.

It is an amenable number.

8461381876 is a deficient number, since it is larger than the sum of its proper divisors (6346036414).

8461381876 is a wasteful number, since it uses less digits than its factorization.

8461381876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115345473 (or 2115345471 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 8461381876 is about 91985.7699647070. The cubic root of 8461381876 is about 2037.7321552424.

The spelling of 8461381876 in words is "eight billion, four hundred sixty-one million, three hundred eighty-one thousand, eight hundred seventy-six".