135861326712 has 24 divisors (see below), whose sum is σ = 367957760040. Its totient is φ = 45287108880.

The previous prime is 135861326693. The next prime is 135861326743. The reversal of 135861326712 is 217623168531.

It is a happy number.

135861326712 is a `hidden beast` number, since 1 + 3 + 5 + 8 + 613 + 26 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 943481364 + ... + 943481507.

It is an arithmetic number, because the mean of its divisors is an integer number (15331573335).

Almost surely, 2^135861326712 is an apocalyptic number.

135861326712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135861326712 is an abundant number, since it is smaller than the sum of its proper divisors (232096433328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135861326712 is a wasteful number, since it uses less digits than its factorization.

135861326712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886962883 (or 1886962876 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 135861326712 in words is "one hundred thirty-five billion, eight hundred sixty-one million, three hundred twenty-six thousand, seven hundred twelve".