136377523865 has 8 divisors (see below), whose sum is σ = 178530576768. Its totient is φ = 99183653680.

The previous prime is 136377523819. The next prime is 136377523897. The reversal of 136377523865 is 568325773631.

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

It is not a de Polignac number, because 136377523865 - 2¹² = 136377519769 is a prime.

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 136377523865.

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, 1239795617 + ... + 1239795726.

It is an arithmetic number, because the mean of its divisors is an integer number (22316322096).

Almost surely, 2^136377523865 is an apocalyptic number.

It is an amenable number.

136377523865 is a deficient number, since it is larger than the sum of its proper divisors (42153052903).

136377523865 is a wasteful number, since it uses less digits than its factorization.

136377523865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479591359.

The product of its digits is 19051200, while the sum is 56.

The spelling of 136377523865 in words is "one hundred thirty-six billion, three hundred seventy-seven million, five hundred twenty-three thousand, eight hundred sixty-five".