136294487837 has 2 divisors, whose sum is σ = 136294487838. Its totient is φ = 136294487836.

The previous prime is 136294487789. The next prime is 136294487851. The reversal of 136294487837 is 738784492631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132306060121 + 3988427716 = 363739^2 + 63154^2 .

It is a cyclic number.

It is not a de Polignac number, because 136294487837 - 2¹⁸ = 136294225693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136294487837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136294457837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68147243918 + 68147243919.

It is an arithmetic number, because the mean of its divisors is an integer number (68147243919).

Almost surely, 2^136294487837 is an apocalyptic number.

It is an amenable number.

136294487837 is a deficient number, since it is larger than the sum of its proper divisors (1).

136294487837 is an equidigital number, since it uses as much as digits as its factorization.

136294487837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48771072, while the sum is 62.

The spelling of 136294487837 in words is "one hundred thirty-six billion, two hundred ninety-four million, four hundred eighty-seven thousand, eight hundred thirty-seven".