201244979944 has 32 divisors (see below), whose sum is σ = 388061674920. Its totient is φ = 97769293056.

The previous prime is 201244979899. The next prime is 201244979987. The reversal of 201244979944 is 449979442102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 198347311044 + 2897668900 = 445362^2 + 53830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246799 + ... + 680734.

Almost surely, 2^201244979944 is an apocalyptic number.

It is an amenable number.

201244979944 is a deficient number, since it is larger than the sum of its proper divisors (186816694976).

201244979944 is a wasteful number, since it uses less digits than its factorization.

201244979944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928309 (or 928305 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 201244979944 in words is "two hundred one billion, two hundred forty-four million, nine hundred seventy-nine thousand, nine hundred forty-four".