346979979643 has 16 divisors (see below), whose sum is σ = 384560628480. Its totient is φ = 310442908000.

The previous prime is 346979979641. The next prime is 346979979659.

346979979643 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 346979979643 - 2¹ = 346979979641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 346979979643.

It is not an unprimeable number, because it can be changed into a prime (346979979641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749533 + ... + 1120606.

It is an arithmetic number, because the mean of its divisors is an integer number (24035039280).

Almost surely, 2^346979979643 is an apocalyptic number.

346979979643 is a deficient number, since it is larger than the sum of its proper divisors (37580648837).

346979979643 is a wasteful number, since it uses less digits than its factorization.

346979979643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870418.

The product of its digits is 1666598976, while the sum is 76.

The spelling of 346979979643 in words is "three hundred forty-six billion, nine hundred seventy-nine million, nine hundred seventy-nine thousand, six hundred forty-three".