136782178765 has 8 divisors (see below), whose sum is σ = 164141452800. Its totient is φ = 109423850832.

The previous prime is 136782178759. The next prime is 136782178837. The reversal of 136782178765 is 567871287631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136782178765 - 2³⁵ = 102422440397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134436 + ... + 540034.

It is an arithmetic number, because the mean of its divisors is an integer number (20517681600).

Almost surely, 2^136782178765 is an apocalyptic number.

It is an amenable number.

136782178765 is a deficient number, since it is larger than the sum of its proper divisors (27359274035).

136782178765 is an equidigital number, since it uses as much as digits as its factorization.

136782178765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473051.

The product of its digits is 23708160, while the sum is 61.

The spelling of 136782178765 in words is "one hundred thirty-six billion, seven hundred eighty-two million, one hundred seventy-eight thousand, seven hundred sixty-five".