5420738816 has 18 divisors (see below), whose sum is σ = 10820303382. Its totient is φ = 2710369280.

The previous prime is 5420738801. The next prime is 5420738849. The reversal of 5420738816 is 6188370245.

It can be written as a sum of positive squares in only one way, i.e., 3476281600 + 1944457216 = 58960^2 + 44096^2 .

It is a super-2 number, since 2×5420738816² = 58768818622578163712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10587125 + ... + 10587636.

Almost surely, 2^5420738816 is an apocalyptic number.

It is an amenable number.

5420738816 is a deficient number, since it is larger than the sum of its proper divisors (5399564566).

5420738816 is an equidigital number, since it uses as much as digits as its factorization.

5420738816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21174777 (or 21174763 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 5420738816 is about 73625.6668288987. Note that the first 3 decimals coincide. The cubic root of 5420738816 is about 1756.6537244267.

The spelling of 5420738816 in words is "five billion, four hundred twenty million, seven hundred thirty-eight thousand, eight hundred sixteen".