5491402816 has 63 divisors (see below), whose sum is σ = 11155881549. Its totient is φ = 2681971968.

The previous prime is 5491402801. The next prime is 5491402831. The reversal of 5491402816 is 6182041945.

The square root of 5491402816 is 74104.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (5491402801) and next prime (5491402831).

It can be written as a sum of positive squares in only one way, i.e., 1609614400 + 3881788416 = 40120^2 + 62304^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34977010 + ... + 34977166.

Almost surely, 2^5491402816 is an apocalyptic number.

5491402816 is the 74104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5491402816

5491402816 is an abundant number, since it is smaller than the sum of its proper divisors (5664478733).

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

5491402816 is an frugal number, since it uses more digits than its factorization.

5491402816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The cubic root of 5491402816 is about 1764.2539591137.

The spelling of 5491402816 in words is "five billion, four hundred ninety-one million, four hundred two thousand, eight hundred sixteen".