201139897682 has 4 divisors (see below), whose sum is σ = 301709846526. Its totient is φ = 100569948840.

The previous prime is 201139897669. The next prime is 201139897691. The reversal of 201139897682 is 286798931102.

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

It can be written as a sum of positive squares in only one way, i.e., 122032147561 + 79107750121 = 349331^2 + 281261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50284974419 + ... + 50284974422.

Almost surely, 2^201139897682 is an apocalyptic number.

201139897682 is a deficient number, since it is larger than the sum of its proper divisors (100569948844).

201139897682 is a wasteful number, since it uses less digits than its factorization.

201139897682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100569948843.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 201139897682 in words is "two hundred one billion, one hundred thirty-nine million, eight hundred ninety-seven thousand, six hundred eighty-two".