136985660875 has 64 divisors (see below), whose sum is σ = 206435174400. Its totient is φ = 88655472000.

The previous prime is 136985660843. The next prime is 136985660887. The reversal of 136985660875 is 578066589631.

It is not a de Polignac number, because 136985660875 - 2⁵ = 136985660843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4456810 + ... + 4487440.

It is an arithmetic number, because the mean of its divisors is an integer number (3225549600).

Almost surely, 2^136985660875 is an apocalyptic number.

136985660875 is a deficient number, since it is larger than the sum of its proper divisors (69449513525).

136985660875 is a wasteful number, since it uses less digits than its factorization.

136985660875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30941 (or 30931 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 136985660875 in words is "one hundred thirty-six billion, nine hundred eighty-five million, six hundred sixty thousand, eight hundred seventy-five".