63840453145 has 16 divisors (see below), whose sum is σ = 87570096768. Its totient is φ = 43767573120.

The previous prime is 63840453121. The next prime is 63840453163. The reversal of 63840453145 is 54135404836.

It is not a de Polignac number, because 63840453145 - 2⁹ = 63840452633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659 + ... + 357328.

It is an arithmetic number, because the mean of its divisors is an integer number (5473131048).

Almost surely, 2^63840453145 is an apocalyptic number.

It is an amenable number.

63840453145 is a deficient number, since it is larger than the sum of its proper divisors (23729643623).

63840453145 is a wasteful number, since it uses less digits than its factorization.

63840453145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364080.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 63840453145 in words is "sixty-three billion, eight hundred forty million, four hundred fifty-three thousand, one hundred forty-five".