6896419821 has 6 divisors (see below), whose sum is σ = 9961495310. Its totient is φ = 4597613208.

The previous prime is 6896419799. The next prime is 6896419841. The reversal of 6896419821 is 1289146986.

6896419821 is a `hidden beast` number, since 68 + 96 + 419 + 82 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5301296100 + 1595123721 = 72810^2 + 39939^2 .

It is not a de Polignac number, because 6896419821 - 2¹⁵ = 6896387053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6896419841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 383134426 + ... + 383134443.

Almost surely, 2^6896419821 is an apocalyptic number.

It is an amenable number.

6896419821 is a deficient number, since it is larger than the sum of its proper divisors (3065075489).

6896419821 is a wasteful number, since it uses less digits than its factorization.

6896419821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766268875 (or 766268872 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 6896419821 is about 83044.6856878873. The cubic root of 6896419821 is about 1903.4489360630.

The spelling of 6896419821 in words is "six billion, eight hundred ninety-six million, four hundred nineteen thousand, eight hundred twenty-one".