34940681977 has 4 divisors (see below), whose sum is σ = 35076638196. Its totient is φ = 34804725760.

The previous prime is 34940681969. The next prime is 34940681981. The reversal of 34940681977 is 77918604943.

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 34797544681 + 143137296 = 186541^2 + 11964^2 .

It is a cyclic number.

It is not a de Polignac number, because 34940681977 - 2³ = 34940681969 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34940681917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67977724 + ... + 67978237.

It is an arithmetic number, because the mean of its divisors is an integer number (8769159549).

Almost surely, 2^34940681977 is an apocalyptic number.

It is an amenable number.

34940681977 is a deficient number, since it is larger than the sum of its proper divisors (135956219).

34940681977 is a wasteful number, since it uses less digits than its factorization.

34940681977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135956218.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 34940681977 in words is "thirty-four billion, nine hundred forty million, six hundred eighty-one thousand, nine hundred seventy-seven".