20752342361 has 4 divisors (see below), whose sum is σ = 20752630500. Its totient is φ = 20752054224.

The previous prime is 20752342327. The next prime is 20752342363. The reversal of 20752342361 is 16324325702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10766137600 + 9986204761 = 103760^2 + 99931^2 .

It is a cyclic number.

It is not a de Polignac number, because 20752342361 - 2⁶ = 20752342297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20752342363) 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, 69215 + ... + 215163.

It is an arithmetic number, because the mean of its divisors is an integer number (5188157625).

Almost surely, 2^20752342361 is an apocalyptic number.

It is an amenable number.

20752342361 is a deficient number, since it is larger than the sum of its proper divisors (288139).

20752342361 is a wasteful number, since it uses less digits than its factorization.

20752342361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288138.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 20752342361 in words is "twenty billion, seven hundred fifty-two million, three hundred forty-two thousand, three hundred sixty-one".