136371244989 has 64 divisors (see below), whose sum is σ = 217905889280. Its totient is φ = 74223864000.

The previous prime is 136371244987. The next prime is 136371244991. The reversal of 136371244989 is 989442173631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136371244987) and next prime (136371244991).

It is not a de Polignac number, because 136371244989 - 2¹ = 136371244987 is a prime.

It is a super-2 number, since 2×136371244989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136371244981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17018994 + ... + 17027004.

It is an arithmetic number, because the mean of its divisors is an integer number (3404779520).

Almost surely, 2^136371244989 is an apocalyptic number.

It is an amenable number.

136371244989 is a deficient number, since it is larger than the sum of its proper divisors (81534644291).

136371244989 is a wasteful number, since it uses less digits than its factorization.

136371244989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8462.

The product of its digits is 7838208, while the sum is 57.

The spelling of 136371244989 in words is "one hundred thirty-six billion, three hundred seventy-one million, two hundred forty-four thousand, nine hundred eighty-nine".