137806903478 has 8 divisors (see below), whose sum is σ = 206771649168. Its totient is φ = 68883020424.

The previous prime is 137806903469. The next prime is 137806903483. The reversal of 137806903478 is 874309608731.

137806903478 is digitally balanced in base 2, 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10207226 + ... + 10220717.

It is an arithmetic number, because the mean of its divisors is an integer number (25846456146).

Almost surely, 2^137806903478 is an apocalyptic number.

137806903478 is a deficient number, since it is larger than the sum of its proper divisors (68964745690).

137806903478 is a wasteful number, since it uses less digits than its factorization.

137806903478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20431318.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 137806903478 in words is "one hundred thirty-seven billion, eight hundred six million, nine hundred three thousand, four hundred seventy-eight".