136780608483847 has 4 divisors (see below), whose sum is σ = 137274401294536. Its totient is φ = 136286815673160.

The previous prime is 136780608483833. The next prime is 136780608483859. The reversal of 136780608483847 is 748384806087631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136780608483847 - 2¹⁵ = 136780608451079 is a prime.

It is a super-2 number, since 2×136780608483847² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136780608483847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136780608483247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246896404929 + ... + 246896405482.

It is an arithmetic number, because the mean of its divisors is an integer number (34318600323634).

Almost surely, 2^{136780608483847} is an apocalyptic number.

136780608483847 is a deficient number, since it is larger than the sum of its proper divisors (493792810689).

136780608483847 is an equidigital number, since it uses as much as digits as its factorization.

136780608483847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493792810688.

The product of its (nonzero) digits is 1040449536, while the sum is 73.

The spelling of 136780608483847 in words is "one hundred thirty-six trillion, seven hundred eighty billion, six hundred eight million, four hundred eighty-three thousand, eight hundred forty-seven".