136578143805 has 16 divisors (see below), whose sum is σ = 218962968000. Its totient is φ = 72695697408.

The previous prime is 136578143789. The next prime is 136578143813. The reversal of 136578143805 is 508341875631.

It is not a de Polignac number, because 136578143805 - 2⁴ = 136578143789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9115972 + ... + 9130941.

It is an arithmetic number, because the mean of its divisors is an integer number (13685185500).

Almost surely, 2^136578143805 is an apocalyptic number.

136578143805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136578143805 is a deficient number, since it is larger than the sum of its proper divisors (82384824195).

136578143805 is a wasteful number, since it uses less digits than its factorization.

136578143805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247420.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 136578143805 in words is "one hundred thirty-six billion, five hundred seventy-eight million, one hundred forty-three thousand, eight hundred five".