6545605394 has 16 divisors (see below), whose sum is σ = 9844405632. Its totient is φ = 3264149328.

The previous prime is 6545605373. The next prime is 6545605411. The reversal of 6545605394 is 4935065456.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464407 + ... + 1468869.

It is an arithmetic number, because the mean of its divisors is an integer number (615275352).

Almost surely, 2^6545605394 is an apocalyptic number.

6545605394 is a deficient number, since it is larger than the sum of its proper divisors (3298800238).

6545605394 is a wasteful number, since it uses less digits than its factorization.

6545605394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The square root of 6545605394 is about 80904.9157591799. The cubic root of 6545605394 is about 1870.6100932877.

The spelling of 6545605394 in words is "six billion, five hundred forty-five million, six hundred five thousand, three hundred ninety-four".