136861678895 has 8 divisors (see below), whose sum is σ = 164957513904. Its totient is φ = 109007010304.

The previous prime is 136861678879. The next prime is 136861678913. The reversal of 136861678895 is 598876168631.

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 136861678895 - 2⁴ = 136861678879 is a prime.

It is a super-3 number, since 3×136861678895³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60290354 + ... + 60292623.

It is an arithmetic number, because the mean of its divisors is an integer number (20619689238).

Almost surely, 2^136861678895 is an apocalyptic number.

136861678895 is a deficient number, since it is larger than the sum of its proper divisors (28095835009).

136861678895 is a wasteful number, since it uses less digits than its factorization.

136861678895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120583209.

The product of its digits is 104509440, while the sum is 68.

The spelling of 136861678895 in words is "one hundred thirty-six billion, eight hundred sixty-one million, six hundred seventy-eight thousand, eight hundred ninety-five".