6638914159 has 8 divisors (see below), whose sum is σ = 6682384800. Its totient is φ = 6595488096.

The previous prime is 6638914153. The next prime is 6638914193. The reversal of 6638914159 is 9514198366.

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 6638914159 - 2⁷ = 6638914031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6638914153) 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, 319417 + ... + 339565.

It is an arithmetic number, because the mean of its divisors is an integer number (835298100).

Almost surely, 2^6638914159 is an apocalyptic number.

6638914159 is a deficient number, since it is larger than the sum of its proper divisors (43470641).

6638914159 is a wasteful number, since it uses less digits than its factorization.

6638914159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22289.

The product of its digits is 1399680, while the sum is 52.

The square root of 6638914159 is about 81479.5321476504. The cubic root of 6638914159 is about 1879.4568144593.

The spelling of 6638914159 in words is "six billion, six hundred thirty-eight million, nine hundred fourteen thousand, one hundred fifty-nine".