5408197785 has 12 divisors (see below), whose sum is σ = 9374209572. Its totient is φ = 2884372128.

The previous prime is 5408197699. The next prime is 5408197801. The reversal of 5408197785 is 5877918045.

5408197785 is a `hidden beast` number, since 540 + 8 + 1 + 97 + 7 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 710329104 + 4697868681 = 26652^2 + 68541^2 .

It is not a de Polignac number, because 5408197785 - 2⁷ = 5408197657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60091042 + ... + 60091131.

It is an arithmetic number, because the mean of its divisors is an integer number (781184131).

Almost surely, 2^5408197785 is an apocalyptic number.

It is an amenable number.

5408197785 is a deficient number, since it is larger than the sum of its proper divisors (3966011787).

5408197785 is a wasteful number, since it uses less digits than its factorization.

5408197785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120182184 (or 120182181 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The square root of 5408197785 is about 73540.4499918242. The cubic root of 5408197785 is about 1755.2979891889.

The spelling of 5408197785 in words is "five billion, four hundred eight million, one hundred ninety-seven thousand, seven hundred eighty-five".