63989023739 has 8 divisors (see below), whose sum is σ = 64265287680. Its totient is φ = 63712831336.

The previous prime is 63989023697. The next prime is 63989023759. The reversal of 63989023739 is 93732098936.

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 63989023739 - 2²⁴ = 63972246523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63989023759) 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, 2580092 + ... + 2604774.

It is an arithmetic number, because the mean of its divisors is an integer number (8033160960).

Almost surely, 2^63989023739 is an apocalyptic number.

63989023739 is a deficient number, since it is larger than the sum of its proper divisors (276263941).

63989023739 is a wasteful number, since it uses less digits than its factorization.

63989023739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35769.

The product of its (nonzero) digits is 13226976, while the sum is 59.

The spelling of 63989023739 in words is "sixty-three billion, nine hundred eighty-nine million, twenty-three thousand, seven hundred thirty-nine".