201046890049 has 4 divisors (see below), whose sum is σ = 207979541460. Its totient is φ = 194114238640.

The previous prime is 201046890043. The next prime is 201046890071. The reversal of 201046890049 is 940098640102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31282289424 + 169764600625 = 176868^2 + 412025^2 .

It is a cyclic number.

It is not a de Polignac number, because 201046890049 - 2¹¹ = 201046888001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201046889987 and 201046890014.

It is not an unprimeable number, because it can be changed into a prime (201046890043) 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, 3466325662 + ... + 3466325719.

It is an arithmetic number, because the mean of its divisors is an integer number (51994885365).

Almost surely, 2^201046890049 is an apocalyptic number.

201046890049 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

201046890049 is a deficient number, since it is larger than the sum of its proper divisors (6932651411).

201046890049 is an equidigital number, since it uses as much as digits as its factorization.

201046890049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932651410.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 201046890049 in words is "two hundred one billion, forty-six million, eight hundred ninety thousand, forty-nine".