8465119821 has 12 divisors (see below), whose sum is σ = 12229933248. Its totient is φ = 5642241864.

The previous prime is 8465119781. The next prime is 8465119823. The reversal of 8465119821 is 1289115648.

It is a happy number.

8465119821 is a `hidden beast` number, since 8 + 46 + 511 + 98 + 2 + 1 = 666.

It is not a de Polignac number, because 8465119821 - 2⁷ = 8465119693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8465119823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50655 + ... + 139628.

It is an arithmetic number, because the mean of its divisors is an integer number (1019161104).

Almost surely, 2^8465119821 is an apocalyptic number.

It is an amenable number.

8465119821 is a deficient number, since it is larger than the sum of its proper divisors (3764813427).

8465119821 is a wasteful number, since it uses less digits than its factorization.

8465119821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195232 (or 195229 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 8465119821 is about 92006.0857824090. The cubic root of 8465119821 is about 2038.0321775270.

The spelling of 8465119821 in words is "eight billion, four hundred sixty-five million, one hundred nineteen thousand, eight hundred twenty-one".