137384433778 has 8 divisors (see below), whose sum is σ = 206083909980. Its totient is φ = 68689797120.

The previous prime is 137384433707. The next prime is 137384433817. The reversal of 137384433778 is 877334483731.

It can be written as a sum of positive squares in 2 ways, for example, as 135495401409 + 1889032369 = 368097^2 + 43463^2 .

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

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, 1138063 + ... + 1252978.

Almost surely, 2^137384433778 is an apocalyptic number.

137384433778 is a deficient number, since it is larger than the sum of its proper divisors (68699476202).

137384433778 is a wasteful number, since it uses less digits than its factorization.

137384433778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419772.

The product of its digits is 28449792, while the sum is 58.

The spelling of 137384433778 in words is "one hundred thirty-seven billion, three hundred eighty-four million, four hundred thirty-three thousand, seven hundred seventy-eight".