20050737672397 has 2 divisors, whose sum is σ = 20050737672398. Its totient is φ = 20050737672396.

The previous prime is 20050737672263. The next prime is 20050737672401. The reversal of 20050737672397 is 79327673705002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20004964781481 + 45772890916 = 4472691^2 + 213946^2 .

It is a cyclic number.

It is not a de Polignac number, because 20050737672397 - 2³¹ = 20048590188749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20050737472397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025368836198 + 10025368836199.

It is an arithmetic number, because the mean of its divisors is an integer number (10025368836199).

Almost surely, 2^{20050737672397} is an apocalyptic number.

It is an amenable number.

20050737672397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20050737672397 is an equidigital number, since it uses as much as digits as its factorization.

20050737672397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23337720, while the sum is 58.

The spelling of 20050737672397 in words is "twenty trillion, fifty billion, seven hundred thirty-seven million, six hundred seventy-two thousand, three hundred ninety-seven".