64380001563 has 6 divisors (see below), whose sum is σ = 92993335604. Its totient is φ = 42920001036.

The previous prime is 64380001541. The next prime is 64380001571. The reversal of 64380001563 is 36510008346.

64380001563 is a `hidden beast` number, since 64 + 38 + 0 + 0 + 0 + 1 + 563 = 666.

It is not a de Polignac number, because 64380001563 - 2⁹ = 64380001051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64380001513) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3576666745 + ... + 3576666762.

Almost surely, 2^64380001563 is an apocalyptic number.

64380001563 is a deficient number, since it is larger than the sum of its proper divisors (28613334041).

64380001563 is a wasteful number, since it uses less digits than its factorization.

64380001563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7153333513 (or 7153333510 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 64380001563 in words is "sixty-four billion, three hundred eighty million, one thousand, five hundred sixty-three".