20477500703237 has 2 divisors, whose sum is σ = 20477500703238. Its totient is φ = 20477500703236.

The previous prime is 20477500703197. The next prime is 20477500703263. The reversal of 20477500703237 is 73230700577402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15816258565156 + 4661242138081 = 3976966^2 + 2158991^2 .

It is a cyclic number.

It is not a de Polignac number, because 20477500703237 - 2¹² = 20477500699141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20477500703191 and 20477500703200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20477500703267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10238750351618 + 10238750351619.

It is an arithmetic number, because the mean of its divisors is an integer number (10238750351619).

Almost surely, 2^{20477500703237} is an apocalyptic number.

It is an amenable number.

20477500703237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20477500703237 is an equidigital number, since it uses as much as digits as its factorization.

20477500703237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728720, while the sum is 47.

The spelling of 20477500703237 in words is "twenty trillion, four hundred seventy-seven billion, five hundred million, seven hundred three thousand, two hundred thirty-seven".