201954274722 has 54 divisors (see below), whose sum is σ = 443949743601. Its totient is φ = 66350167200.

The previous prime is 201954274673. The next prime is 201954274729. The reversal of 201954274722 is 227472459102.

201954274722 is a `hidden beast` number, since 2 + 0 + 19 + 542 + 74 + 7 + 22 = 666.

201954274722 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 201025792881 + 928481841 = 448359^2 + 30471^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=317769.

It is not an unprimeable number, because it can be changed into a prime (201954274729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 139182097 + ... + 139183547.

Almost surely, 2^201954274722 is an apocalyptic number.

201954274722 is an abundant number, since it is smaller than the sum of its proper divisors (241995468879).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201954274722 is an frugal number, since it uses more digits than its factorization.

201954274722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 201954274722 in words is "two hundred one billion, nine hundred fifty-four million, two hundred seventy-four thousand, seven hundred twenty-two".