136377523643 has 4 divisors (see below), whose sum is σ = 136379430768. Its totient is φ = 136375616520.

The previous prime is 136377523637. The next prime is 136377523661. The reversal of 136377523643 is 346325773631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136377523643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136377523591 and 136377523600.

It is not an unprimeable number, because it can be changed into a prime (136377523603) 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, 841943 + ... + 990768.

It is an arithmetic number, because the mean of its divisors is an integer number (34094857692).

Almost surely, 2^136377523643 is an apocalyptic number.

136377523643 is a deficient number, since it is larger than the sum of its proper divisors (1907125).

136377523643 is an equidigital number, since it uses as much as digits as its factorization.

136377523643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907124.

The product of its digits is 5715360, while the sum is 50.

The spelling of 136377523643 in words is "one hundred thirty-six billion, three hundred seventy-seven million, five hundred twenty-three thousand, six hundred forty-three".