2073865538 has 4 divisors (see below), whose sum is σ = 3110798310. Its totient is φ = 1036932768.

The previous prime is 2073865537. The next prime is 2073865583. The reversal of 2073865538 is 8355683702.

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., 1753348129 + 320517409 = 41873^2 + 17903^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2073865492 and 2073865501.

It is not an unprimeable number, because it can be changed into a prime (2073865531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518466383 + ... + 518466386.

Almost surely, 2^2073865538 is an apocalyptic number.

2073865538 is a deficient number, since it is larger than the sum of its proper divisors (1036932772).

2073865538 is a wasteful number, since it uses less digits than its factorization.

2073865538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036932771.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 2073865538 is about 45539.7138550518. The cubic root of 2073865538 is about 1275.2447128392.

The spelling of 2073865538 in words is "two billion, seventy-three million, eight hundred sixty-five thousand, five hundred thirty-eight".