40639885563 has 8 divisors (see below), whose sum is σ = 54253331776. Its totient is φ = 27059848200.

The previous prime is 40639885547. The next prime is 40639885589. The reversal of 40639885563 is 36558893604.

It is a happy number.

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

It is not a de Polignac number, because 40639885563 - 2⁴ = 40639885547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40639881563) 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, 8349373 + ... + 8354238.

It is an arithmetic number, because the mean of its divisors is an integer number (6781666472).

Almost surely, 2^40639885563 is an apocalyptic number.

40639885563 is a deficient number, since it is larger than the sum of its proper divisors (13613446213).

40639885563 is a wasteful number, since it uses less digits than its factorization.

40639885563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16704425.

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 40639885563 in words is "forty billion, six hundred thirty-nine million, eight hundred eighty-five thousand, five hundred sixty-three".