639434093233 has 16 divisors (see below), whose sum is σ = 700737710400. Its totient is φ = 579874098240.

The previous prime is 639434093197. The next prime is 639434093299. The reversal of 639434093233 is 332390434936.

It is a cyclic number.

It is not a de Polignac number, because 639434093233 - 2¹³ = 639434085041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (639434093833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947103 + ... + 1475083.

It is an arithmetic number, because the mean of its divisors is an integer number (43796106900).

Almost surely, 2^639434093233 is an apocalyptic number.

It is an amenable number.

639434093233 is a deficient number, since it is larger than the sum of its proper divisors (61303617167).

639434093233 is a wasteful number, since it uses less digits than its factorization.

639434093233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529632.

The product of its (nonzero) digits is 3779136, while the sum is 49.

The spelling of 639434093233 in words is "six hundred thirty-nine billion, four hundred thirty-four million, ninety-three thousand, two hundred thirty-three".