201838290061 has 4 divisors (see below), whose sum is σ = 201861416224. Its totient is φ = 201815163900.

The previous prime is 201838290029. The next prime is 201838290079. The reversal of 201838290061 is 160092838102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201838290061 - 2⁵ = 201838290029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201838289996 and 201838290023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201838290001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11549985 + ... + 11567446.

It is an arithmetic number, because the mean of its divisors is an integer number (50465354056).

Almost surely, 2^201838290061 is an apocalyptic number.

It is an amenable number.

201838290061 is a deficient number, since it is larger than the sum of its proper divisors (23126163).

201838290061 is an equidigital number, since it uses as much as digits as its factorization.

201838290061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23126162.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 201838290061 in words is "two hundred one billion, eight hundred thirty-eight million, two hundred ninety thousand, sixty-one".