135876678531 has 16 divisors (see below), whose sum is σ = 202980396288. Its totient is φ = 80123839200.

The previous prime is 135876678521. The next prime is 135876678541.

It is a happy number.

135876678531 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (135876678521) and next prime (135876678541).

It is not a de Polignac number, because 135876678531 - 2⁶ = 135876678467 is a prime.

It is a super-2 number, since 2×135876678531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135876678521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55640335 + ... + 55642776.

It is an arithmetic number, because the mean of its divisors is an integer number (12686274768).

Almost surely, 2^135876678531 is an apocalyptic number.

135876678531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135876678531 is a deficient number, since it is larger than the sum of its proper divisors (67103717757).

135876678531 is a wasteful number, since it uses less digits than its factorization.

135876678531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111283162.

The product of its digits is 25401600, while the sum is 60.

The spelling of 135876678531 in words is "one hundred thirty-five billion, eight hundred seventy-six million, six hundred seventy-eight thousand, five hundred thirty-one".