5421954688 has 16 divisors (see below), whose sum is σ = 10801550610. Its totient is φ = 2710977280.

The previous prime is 5421954673. The next prime is 5421954719. The reversal of 5421954688 is 8864591245.

It can be written as a sum of positive squares in only one way, i.e., 4934781504 + 487173184 = 70248^2 + 22072^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 21179383 + ... + 21179638.

Almost surely, 2^5421954688 is an apocalyptic number.

It is an amenable number.

5421954688 is a deficient number, since it is larger than the sum of its proper divisors (5379595922).

5421954688 is an equidigital number, since it uses as much as digits as its factorization.

5421954688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42359035 (or 42359023 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The square root of 5421954688 is about 73633.9234863931. The cubic root of 5421954688 is about 1756.7850537822.

The spelling of 5421954688 in words is "five billion, four hundred twenty-one million, nine hundred fifty-four thousand, six hundred eighty-eight".