6453388945 has 8 divisors (see below), whose sum is σ = 7746846336. Its totient is φ = 5160858096.

The previous prime is 6453388943. The next prime is 6453388961. The reversal of 6453388945 is 5498833546.

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

It is a cyclic number.

It is not a de Polignac number, because 6453388945 - 2¹ = 6453388943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6453388943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216217 + ... + 244246.

It is an arithmetic number, because the mean of its divisors is an integer number (968355792).

Almost surely, 2^6453388945 is an apocalyptic number.

It is an amenable number.

6453388945 is a deficient number, since it is larger than the sum of its proper divisors (1293457391).

6453388945 is a wasteful number, since it uses less digits than its factorization.

6453388945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463271.

The product of its digits is 12441600, while the sum is 55.

The square root of 6453388945 is about 80332.9879003638. The cubic root of 6453388945 is about 1861.7839423873.

The spelling of 6453388945 in words is "six billion, four hundred fifty-three million, three hundred eighty-eight thousand, nine hundred forty-five".