5421081834864 has 30 divisors (see below), whose sum is σ = 15171499857696. Its totient is φ = 1807027278240.

The previous prime is 5421081834851. The next prime is 5421081834901. The reversal of 5421081834864 is 4684381801245.

5421081834864 is a `hidden beast` number, since 5 + 4 + 2 + 1 + 0 + 81 + 83 + 486 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 5421081834864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18823200672 + ... + 18823200959.

Almost surely, 2^{5421081834864} is an apocalyptic number.

It is an amenable number.

5421081834864 is an abundant number, since it is smaller than the sum of its proper divisors (9750418022832).

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

5421081834864 is a wasteful number, since it uses less digits than its factorization.

5421081834864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37646401645 (or 37646401636 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 5421081834864 in words is "five trillion, four hundred twenty-one billion, eighty-one million, eight hundred thirty-four thousand, eight hundred sixty-four".