135772420726 has 16 divisors (see below), whose sum is σ = 206292981024. Its totient is φ = 67012305984.

The previous prime is 135772420709. The next prime is 135772420759. The reversal of 135772420726 is 627024277531.

135772420726 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 988381 + ... + 1117336.

It is an arithmetic number, because the mean of its divisors is an integer number (12893311314).

Almost surely, 2^135772420726 is an apocalyptic number.

135772420726 is a deficient number, since it is larger than the sum of its proper divisors (70520560298).

135772420726 is a wasteful number, since it uses less digits than its factorization.

135772420726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106135.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 135772420726 in words is "one hundred thirty-five billion, seven hundred seventy-two million, four hundred twenty thousand, seven hundred twenty-six".