1355545678 has 16 divisors (see below), whose sum is σ = 2061968400. Its totient is φ = 668289856.

The previous prime is 1355545673. The next prime is 1355545757. The reversal of 1355545678 is 8765455531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355545673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24225 + ... + 57427.

It is an arithmetic number, because the mean of its divisors is an integer number (128873025).

Almost surely, 2^1355545678 is an apocalyptic number.

1355545678 is a deficient number, since it is larger than the sum of its proper divisors (706422722).

1355545678 is a wasteful number, since it uses less digits than its factorization.

1355545678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33491.

The product of its digits is 2520000, while the sum is 49.

The square root of 1355545678 is about 36817.7359162673. The cubic root of 1355545678 is about 1106.7207488973.

The spelling of 1355545678 in words is "one billion, three hundred fifty-five million, five hundred forty-five thousand, six hundred seventy-eight".