136977308961 has 8 divisors (see below), whose sum is σ = 182761596960. Its totient is φ = 91255613472.

The previous prime is 136977308953. The next prime is 136977308987. The reversal of 136977308961 is 169803779631.

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

It is not a de Polignac number, because 136977308961 - 2³ = 136977308953 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 136977308895 and 136977308904.

It is not an unprimeable number, because it can be changed into a prime (136977308911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15643020 + ... + 15651773.

It is an arithmetic number, because the mean of its divisors is an integer number (22845199620).

Almost surely, 2^136977308961 is an apocalyptic number.

It is an amenable number.

136977308961 is a deficient number, since it is larger than the sum of its proper divisors (45784287999).

136977308961 is a wasteful number, since it uses less digits than its factorization.

136977308961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31296255.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 136977308961 in words is "one hundred thirty-six billion, nine hundred seventy-seven million, three hundred eight thousand, nine hundred sixty-one".