135678024691 has 8 divisors (see below), whose sum is σ = 148438943424. Its totient is φ = 122988198120.

The previous prime is 135678024689. The next prime is 135678024697. The reversal of 135678024691 is 196420876531.

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

It is a cyclic number.

It is not a de Polignac number, because 135678024691 - 2¹ = 135678024689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135678024697) by changing a digit.

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, 17769045 + ... + 17776678.

It is an arithmetic number, because the mean of its divisors is an integer number (18554867928).

It is a 2-persistent number, because it is pandigital, and so is 2⋅135678024691 = 271356049382, but 3⋅135678024691 = 407034074073 is not.

Almost surely, 2^135678024691 is an apocalyptic number.

135678024691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135678024691 is a deficient number, since it is larger than the sum of its proper divisors (12760918733).

135678024691 is a wasteful number, since it uses less digits than its factorization.

135678024691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35546081.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 135678024691 in words is "one hundred thirty-five billion, six hundred seventy-eight million, twenty-four thousand, six hundred ninety-one".