5406618605 has 4 divisors (see below), whose sum is σ = 6487942332. Its totient is φ = 4325294880.

The previous prime is 5406618583. The next prime is 5406618611. The reversal of 5406618605 is 5068166045.

It is a happy number.

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 1099452964 + 4307165641 = 33158^2 + 65629^2 .

It is not a de Polignac number, because 5406618605 - 2¹⁴ = 5406602221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540661856 + ... + 540661865.

It is an arithmetic number, because the mean of its divisors is an integer number (1621985583).

Almost surely, 2^5406618605 is an apocalyptic number.

It is an amenable number.

5406618605 is a deficient number, since it is larger than the sum of its proper divisors (1081323727).

5406618605 is a wasteful number, since it uses less digits than its factorization.

5406618605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081323726.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 5406618605 is about 73529.7123957384. The cubic root of 5406618605 is about 1755.1271250408.

The spelling of 5406618605 in words is "five billion, four hundred six million, six hundred eighteen thousand, six hundred five".