34780711138 has 4 divisors (see below), whose sum is σ = 52171066710. Its totient is φ = 17390355568.

The previous prime is 34780711127. The next prime is 34780711169. The reversal of 34780711138 is 83111708743.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34552489689 + 228221449 = 185883^2 + 15107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34780711094 and 34780711103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8695177783 + ... + 8695177786.

Almost surely, 2^34780711138 is an apocalyptic number.

34780711138 is a deficient number, since it is larger than the sum of its proper divisors (17390355572).

34780711138 is a wasteful number, since it uses less digits than its factorization.

34780711138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17390355571.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 34780711138 in words is "thirty-four billion, seven hundred eighty million, seven hundred eleven thousand, one hundred thirty-eight".