633998085197 has 6 divisors (see below), whose sum is σ = 662761703982. Its totient is φ = 606432950552.

The previous prime is 633998085191. The next prime is 633998085229. The reversal of 633998085197 is 791580899336.

633998085197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 578982506281 + 55015578916 = 760909^2 + 234554^2 .

It is not a de Polignac number, because 633998085197 - 2²⁶ = 633930976333 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 (633998085191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 599241518 + ... + 599242575.

It is an arithmetic number, because the mean of its divisors is an integer number (110460283997).

Almost surely, 2^633998085197 is an apocalyptic number.

It is an amenable number.

633998085197 is a deficient number, since it is larger than the sum of its proper divisors (28763618785).

633998085197 is a wasteful number, since it uses less digits than its factorization.

633998085197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198484139 (or 1198484116 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 68.

The spelling of 633998085197 in words is "six hundred thirty-three billion, nine hundred ninety-eight million, eighty-five thousand, one hundred ninety-seven".