137438954866 has 8 divisors (see below), whose sum is σ = 206636759424. Its totient is φ = 68560035060.

The previous prime is 137438954771. The next prime is 137438954867. The reversal of 137438954866 is 668459834731.

137438954866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 137438954798 and 137438954807.

It is not an unprimeable number, because it can be changed into a prime (137438954867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79720110 + ... + 79721833.

It is an arithmetic number, because the mean of its divisors is an integer number (25829594928).

Almost surely, 2^137438954866 is an apocalyptic number.

137438954866 is a deficient number, since it is larger than the sum of its proper divisors (69197804558).

137438954866 is a wasteful number, since it uses less digits than its factorization.

137438954866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159442376.

The product of its digits is 104509440, while the sum is 64.

The spelling of 137438954866 in words is "one hundred thirty-seven billion, four hundred thirty-eight million, nine hundred fifty-four thousand, eight hundred sixty-six".