201833789397 has 16 divisors (see below), whose sum is σ = 276411163392. Its totient is φ = 130906825920.

The previous prime is 201833789371. The next prime is 201833789401. The reversal of 201833789397 is 793987338102.

It is not a de Polignac number, because 201833789397 - 2²⁰ = 201832740821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201833789397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201833781397) 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, 1175143 + ... + 1335899.

It is an arithmetic number, because the mean of its divisors is an integer number (17275697712).

Almost surely, 2^201833789397 is an apocalyptic number.

It is an amenable number.

201833789397 is a deficient number, since it is larger than the sum of its proper divisors (74577373995).

201833789397 is a wasteful number, since it uses less digits than its factorization.

201833789397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172108.

The product of its (nonzero) digits is 13716864, while the sum is 60.

It can be divided in two parts, 201833789 and 397, that added together give a triangular number (201834186 = T₂₀₀₉₁).

The spelling of 201833789397 in words is "two hundred one billion, eight hundred thirty-three million, seven hundred eighty-nine thousand, three hundred ninety-seven".