135312644246078 has 32 divisors (see below), whose sum is σ = 225634475646720. Its totient is φ = 60437012705280.

The previous prime is 135312644246023. The next prime is 135312644246093. The reversal of 135312644246078 is 870642446213531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146761988 + ... + 147681096.

It is an arithmetic number, because the mean of its divisors is an integer number (7051077363960).

Almost surely, 2^{135312644246078} is an apocalyptic number.

135312644246078 is a deficient number, since it is larger than the sum of its proper divisors (90321831400642).

135312644246078 is a wasteful number, since it uses less digits than its factorization.

135312644246078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101812.

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 135312644246078 in words is "one hundred thirty-five trillion, three hundred twelve billion, six hundred forty-four million, two hundred forty-six thousand, seventy-eight".