236988644797 has 2 divisors, whose sum is σ = 236988644798. Its totient is φ = 236988644796.

The previous prime is 236988644779. The next prime is 236988644813. The reversal of 236988644797 is 797446889632.

Together with previous prime (236988644779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215434294201 + 21554350596 = 464149^2 + 146814^2 .

It is a cyclic number.

It is not a de Polignac number, because 236988644797 - 2²³ = 236980256189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236988644747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118494322398 + 118494322399.

It is an arithmetic number, because the mean of its divisors is an integer number (118494322399).

Almost surely, 2^236988644797 is an apocalyptic number.

It is an amenable number.

236988644797 is a deficient number, since it is larger than the sum of its proper divisors (1).

236988644797 is an equidigital number, since it uses as much as digits as its factorization.

236988644797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 877879296, while the sum is 73.

The spelling of 236988644797 in words is "two hundred thirty-six billion, nine hundred eighty-eight million, six hundred forty-four thousand, seven hundred ninety-seven".