536638887937 has 2 divisors, whose sum is σ = 536638887938. Its totient is φ = 536638887936.

The previous prime is 536638887923. The next prime is 536638887979. The reversal of 536638887937 is 739788836635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470045988801 + 66592899136 = 685599^2 + 258056^2 .

It is a cyclic number.

It is not a de Polignac number, because 536638887937 - 2¹⁹ = 536638363649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 536638887937.

It is not a weakly prime, because it can be changed into another prime (536638887737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268319443968 + 268319443969.

It is an arithmetic number, because the mean of its divisors is an integer number (268319443969).

Almost surely, 2^536638887937 is an apocalyptic number.

It is an amenable number.

536638887937 is a deficient number, since it is larger than the sum of its proper divisors (1).

536638887937 is an equidigital number, since it uses as much as digits as its factorization.

536638887937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1097349120, while the sum is 73.

The spelling of 536638887937 in words is "five hundred thirty-six billion, six hundred thirty-eight million, eight hundred eighty-seven thousand, nine hundred thirty-seven".