34155329978 has 64 divisors (see below), whose sum is σ = 66331754496. Its totient is φ = 12800592000.

The previous prime is 34155329939. The next prime is 34155330049. The reversal of 34155329978 is 87992355143.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775838 + ... + 818678.

It is an arithmetic number, because the mean of its divisors is an integer number (1036433664).

Almost surely, 2^34155329978 is an apocalyptic number.

34155329978 is a deficient number, since it is larger than the sum of its proper divisors (32176424518).

34155329978 is a wasteful number, since it uses less digits than its factorization.

34155329978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43059.

The product of its digits is 8164800, while the sum is 56.

The spelling of 34155329978 in words is "thirty-four billion, one hundred fifty-five million, three hundred twenty-nine thousand, nine hundred seventy-eight".