135991846938 has 8 divisors (see below), whose sum is σ = 271983693888. Its totient is φ = 45330615644.

The previous prime is 135991846927. The next prime is 135991846943. The reversal of 135991846938 is 839648199531.

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

135991846938 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11332653906 + ... + 11332653917.

It is an arithmetic number, because the mean of its divisors is an integer number (33997961736).

Almost surely, 2^135991846938 is an apocalyptic number.

135991846938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135991846938 is a wasteful number, since it uses less digits than its factorization.

135991846938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22665307828.

The product of its digits is 50388480, while the sum is 66.

The spelling of 135991846938 in words is "one hundred thirty-five billion, nine hundred ninety-one million, eight hundred forty-six thousand, nine hundred thirty-eight".