34978939656 has 64 divisors (see below), whose sum is σ = 93610080000. Its totient is φ = 10858752576.

The previous prime is 34978939643. The next prime is 34978939663. The reversal of 34978939656 is 65693987943.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623166 + ... + 676973.

It is an arithmetic number, because the mean of its divisors is an integer number (1462657500).

Almost surely, 2^34978939656 is an apocalyptic number.

It is an amenable number.

34978939656 is an abundant number, since it is smaller than the sum of its proper divisors (58631140344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34978939656 is a wasteful number, since it uses less digits than its factorization.

34978939656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300226 (or 1300222 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 69.

The spelling of 34978939656 in words is "thirty-four billion, nine hundred seventy-eight million, nine hundred thirty-nine thousand, six hundred fifty-six".