135668527478 has 8 divisors (see below), whose sum is σ = 222003045000. Its totient is φ = 61667512480.

The previous prime is 135668527469. The next prime is 135668527493. The reversal of 135668527478 is 874725866531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 135668527478.

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 3 ways as a sum of consecutive naturals, for example, 3083375603 + ... + 3083375646.

It is an arithmetic number, because the mean of its divisors is an integer number (27750380625).

Almost surely, 2^135668527478 is an apocalyptic number.

135668527478 is a deficient number, since it is larger than the sum of its proper divisors (86334517522).

135668527478 is a wasteful number, since it uses less digits than its factorization.

135668527478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166751262.

The product of its digits is 67737600, while the sum is 62.

The spelling of 135668527478 in words is "one hundred thirty-five billion, six hundred sixty-eight million, five hundred twenty-seven thousand, four hundred seventy-eight".