135686645613772 has 24 divisors (see below), whose sum is σ = 264549591452160. Its totient is φ = 60363498047760.

The previous prime is 135686645613749. The next prime is 135686645613839. The reversal of 135686645613772 is 277316546686531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32806246872 + ... + 32806251007.

It is an arithmetic number, because the mean of its divisors is an integer number (11022899643840).

Almost surely, 2^{135686645613772} is an apocalyptic number.

It is an amenable number.

135686645613772 is a deficient number, since it is larger than the sum of its proper divisors (128862945838388).

135686645613772 is a wasteful number, since it uses less digits than its factorization.

135686645613772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65612497941 (or 65612497939 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 70.

The spelling of 135686645613772 in words is "one hundred thirty-five trillion, six hundred eighty-six billion, six hundred forty-five million, six hundred thirteen thousand, seven hundred seventy-two".