236473136657 has 2 divisors, whose sum is σ = 236473136658. Its totient is φ = 236473136656.

The previous prime is 236473136633. The next prime is 236473136671. The reversal of 236473136657 is 756631374632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229310730496 + 7162406161 = 478864^2 + 84631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236473136657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 236473136599 and 236473136608.

It is not a weakly prime, because it can be changed into another prime (236473136957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118236568328 + 118236568329.

It is an arithmetic number, because the mean of its divisors is an integer number (118236568329).

Almost surely, 2^236473136657 is an apocalyptic number.

It is an amenable number.

236473136657 is a deficient number, since it is larger than the sum of its proper divisors (1).

236473136657 is an equidigital number, since it uses as much as digits as its factorization.

236473136657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 53.

The spelling of 236473136657 in words is "two hundred thirty-six billion, four hundred seventy-three million, one hundred thirty-six thousand, six hundred fifty-seven".