135978674418 has 48 divisors (see below), whose sum is σ = 316607110560. Its totient is φ = 42023253888.

The previous prime is 135978674383. The next prime is 135978674423. The reversal of 135978674418 is 814476879531.

135978674418 is a `hidden beast` number, since 13 + 59 + 78 + 67 + 441 + 8 = 666.

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 23 ways as a sum of consecutive naturals, for example, 3295728 + ... + 3336731.

It is an arithmetic number, because the mean of its divisors is an integer number (6595981470).

Almost surely, 2^135978674418 is an apocalyptic number.

135978674418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135978674418 is an abundant number, since it is smaller than the sum of its proper divisors (180628436142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135978674418 is a wasteful number, since it uses less digits than its factorization.

135978674418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632551 (or 6632548 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 135978674418 in words is "one hundred thirty-five billion, nine hundred seventy-eight million, six hundred seventy-four thousand, four hundred eighteen".