633798383967 has 20 divisors (see below), whose sum is σ = 1082040275536. Its totient is φ = 362170504800.

The previous prime is 633798383927. The next prime is 633798383987. The reversal of 633798383967 is 769383897336.

It is a happy number.

It is not a de Polignac number, because 633798383967 - 2¹² = 633798379871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 633798383895 and 633798383904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633798383927) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 558904534 + ... + 558905667.

Almost surely, 2^633798383967 is an apocalyptic number.

633798383967 is a deficient number, since it is larger than the sum of its proper divisors (448241891569).

633798383967 is a wasteful number, since it uses less digits than its factorization.

633798383967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117810220 (or 1117810211 counting only the distinct ones).

The product of its digits is 740710656, while the sum is 72.

The spelling of 633798383967 in words is "six hundred thirty-three billion, seven hundred ninety-eight million, three hundred eighty-three thousand, nine hundred sixty-seven".