9420755645 has 8 divisors (see below), whose sum is σ = 12919893504. Its totient is φ = 6459946704.

The previous prime is 9420755639. The next prime is 9420755653. The reversal of 9420755645 is 5465570249.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9420755645 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9420755645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134582189 + ... + 134582258.

It is an arithmetic number, because the mean of its divisors is an integer number (1614986688).

Almost surely, 2^9420755645 is an apocalyptic number.

It is an amenable number.

9420755645 is a deficient number, since it is larger than the sum of its proper divisors (3499137859).

9420755645 is a wasteful number, since it uses less digits than its factorization.

9420755645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269164459.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The square root of 9420755645 is about 97060.5771928026. The cubic root of 9420755645 is about 2112.0064802809.

The spelling of 9420755645 in words is "nine billion, four hundred twenty million, seven hundred fifty-five thousand, six hundred forty-five".