136821750708889 has 7 divisors (see below), whose sum is σ = 137427156685477. Its totient is φ = 136219011718982.

The previous prime is 136821750708883. The next prime is 136821750708899. The reversal of 136821750708889 is 988807057128631.

The square root of 136821750708889 is 11697083.

The cubic root of 136821750708889 is 51529.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It is not a de Polignac number, because 136821750708889 - 2⁵ = 136821750708857 is a prime.

It is a super-2 number, since 2×136821750708889² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136821750708883) by changing a digit.

It is a polite number, since it can be written in 6 ways as a sum of consecutive naturals, for example, 602738989794 + ... + 602738990020.

Almost surely, 2^{136821750708889} is an apocalyptic number.

136821750708889 is the 11697083-rd square number.

136821750708889 is the 5848542-nd centered octagonal number.

It is an amenable number.

136821750708889 is a deficient number, since it is larger than the sum of its proper divisors (605405976588).

136821750708889 is an frugal number, since it uses more digits than its factorization.

136821750708889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 73.

The spelling of 136821750708889 in words is "one hundred thirty-six trillion, eight hundred twenty-one billion, seven hundred fifty million, seven hundred eight thousand, eight hundred eighty-nine".