34351979865 has 16 divisors (see below), whose sum is σ = 62815049088. Its totient is φ = 15703762176.

The previous prime is 34351979861. The next prime is 34351979867. The reversal of 34351979865 is 56897915343.

It is not a de Polignac number, because 34351979865 - 2² = 34351979861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34351979799 and 34351979808.

It is not an unprimeable number, because it can be changed into a prime (34351979861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 163580752 + ... + 163580961.

It is an arithmetic number, because the mean of its divisors is an integer number (3925940568).

Almost surely, 2^34351979865 is an apocalyptic number.

34351979865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34351979865 is a deficient number, since it is larger than the sum of its proper divisors (28463069223).

34351979865 is a wasteful number, since it uses less digits than its factorization.

34351979865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327161728.

The product of its digits is 24494400, while the sum is 60.

The spelling of 34351979865 in words is "thirty-four billion, three hundred fifty-one million, nine hundred seventy-nine thousand, eight hundred sixty-five".