6445846540045 has 16 divisors (see below), whose sum is σ = 8882314850880. Its totient is φ = 4441157424000.

The previous prime is 6445846540031. The next prime is 6445846540103. The reversal of 6445846540045 is 5400456485446.

It is a happy number.

It is not a de Polignac number, because 6445846540045 - 2²⁷ = 6445712322317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3084136056 + ... + 3084138145.

It is an arithmetic number, because the mean of its divisors is an integer number (555144678180).

Almost surely, 2^{6445846540045} is an apocalyptic number.

It is an amenable number.

6445846540045 is a deficient number, since it is larger than the sum of its proper divisors (2436468310835).

6445846540045 is a wasteful number, since it uses less digits than its factorization.

6445846540045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6168274236.

The product of its (nonzero) digits is 36864000, while the sum is 55.

The spelling of 6445846540045 in words is "six trillion, four hundred forty-five billion, eight hundred forty-six million, five hundred forty thousand, forty-five".