34971918013 has 4 divisors (see below), whose sum is σ = 35117029948. Its totient is φ = 34826806080.

The previous prime is 34971917993. The next prime is 34971918029. The reversal of 34971918013 is 31081917943.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21969761284 + 13002156729 = 148222^2 + 114027^2 .

It is a cyclic number.

It is not a de Polignac number, because 34971918013 - 2²¹ = 34969820861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34971918043) by changing a digit.

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, 72555606 + ... + 72556087.

It is an arithmetic number, because the mean of its divisors is an integer number (8779257487).

Almost surely, 2^34971918013 is an apocalyptic number.

It is an amenable number.

34971918013 is a deficient number, since it is larger than the sum of its proper divisors (145111935).

34971918013 is a wasteful number, since it uses less digits than its factorization.

34971918013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145111934.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 34971918013 in words is "thirty-four billion, nine hundred seventy-one million, nine hundred eighteen thousand, thirteen".