200858315136638 has 4 divisors (see below), whose sum is σ = 301287472704960. Its totient is φ = 100429157568318.

The previous prime is 200858315136617. The next prime is 200858315136653. The reversal of 200858315136638 is 836631513858002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50214578784158 + ... + 50214578784161.

It is an arithmetic number, because the mean of its divisors is an integer number (75321868176240).

Almost surely, 2^{200858315136638} is an apocalyptic number.

200858315136638 is a deficient number, since it is larger than the sum of its proper divisors (100429157568322).

200858315136638 is a wasteful number, since it uses less digits than its factorization.

200858315136638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100429157568321.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 200858315136638 in words is "two hundred trillion, eight hundred fifty-eight billion, three hundred fifteen million, one hundred thirty-six thousand, six hundred thirty-eight".