5408969281 has 4 divisors (see below), whose sum is σ = 5428218564. Its totient is φ = 5389720000.

The previous prime is 5408969263. The next prime is 5408969297. The reversal of 5408969281 is 1829698045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2194079281 + 3214890000 = 46841^2 + 56700^2 .

It is a cyclic number.

It is not a de Polignac number, because 5408969281 - 2¹¹ = 5408967233 is a prime.

It is a super-2 number, since 2×5408969281² = 58513897365603313922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5408969681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9624220 + ... + 9624781.

It is an arithmetic number, because the mean of its divisors is an integer number (1357054641).

Almost surely, 2^5408969281 is an apocalyptic number.

It is an amenable number.

5408969281 is a deficient number, since it is larger than the sum of its proper divisors (19249283).

5408969281 is a wasteful number, since it uses less digits than its factorization.

5408969281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19249282.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 5408969281 is about 73545.6951901333. The cubic root of 5408969281 is about 1755.3814514341.

The spelling of 5408969281 in words is "five billion, four hundred eight million, nine hundred sixty-nine thousand, two hundred eighty-one".