5420879664 has 80 divisors (see below), whose sum is σ = 14754055680. Its totient is φ = 1710339840.

The previous prime is 5420879647. The next prime is 5420879671. The reversal of 5420879664 is 4669780245.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491129 + ... + 1494759.

It is an arithmetic number, because the mean of its divisors is an integer number (184425696).

Almost surely, 2^5420879664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5420879664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7377027840).

5420879664 is an abundant number, since it is smaller than the sum of its proper divisors (9333176016).

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

5420879664 is a wasteful number, since it uses less digits than its factorization.

5420879664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5298 (or 5292 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 5420879664 is about 73626.6233369425. The cubic root of 5420879664 is about 1756.6689387747.

The spelling of 5420879664 in words is "five billion, four hundred twenty million, eight hundred seventy-nine thousand, six hundred sixty-four".