34155181985 has 8 divisors (see below), whose sum is σ = 41034273000. Its totient is φ = 27292109184.

The previous prime is 34155181961. The next prime is 34155181993. The reversal of 34155181985 is 58918155143.

It can be written as a sum of positive squares in 4 ways, for example, as 166203664 + 33988978321 = 12892^2 + 184361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34155181985 - 2¹⁴ = 34155165601 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 3999860 + ... + 4008389.

It is an arithmetic number, because the mean of its divisors is an integer number (5129284125).

Almost surely, 2^34155181985 is an apocalyptic number.

It is an amenable number.

34155181985 is a deficient number, since it is larger than the sum of its proper divisors (6879091015).

34155181985 is an equidigital number, since it uses as much as digits as its factorization.

34155181985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8009107.

The product of its digits is 864000, while the sum is 50.

The spelling of 34155181985 in words is "thirty-four billion, one hundred fifty-five million, one hundred eighty-one thousand, nine hundred eighty-five".