136938361870 has 8 divisors (see below), whose sum is σ = 246489051384. Its totient is φ = 54775344744.

The previous prime is 136938361829. The next prime is 136938361873. The reversal of 136938361870 is 78163839631.

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

It is a super-2 number, since 2×136938361870² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136938361873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6846918084 + ... + 6846918103.

It is an arithmetic number, because the mean of its divisors is an integer number (30811131423).

Almost surely, 2^136938361870 is an apocalyptic number.

136938361870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136938361870 is a deficient number, since it is larger than the sum of its proper divisors (109550689514).

136938361870 is a wasteful number, since it uses less digits than its factorization.

136938361870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13693836194.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 136938361870 in words is "one hundred thirty-six billion, nine hundred thirty-eight million, three hundred sixty-one thousand, eight hundred seventy".