346261673778 has 16 divisors (see below), whose sum is σ = 692531990400. Its totient is φ = 115419117456.

The previous prime is 346261673773. The next prime is 346261673783. The reversal of 346261673778 is 877376162643.

It is an interprime number because it is at equal distance from previous prime (346261673773) and next prime (346261673783).

It is not an unprimeable number, because it can be changed into a prime (346261673773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236823 + ... + 865221.

It is an arithmetic number, because the mean of its divisors is an integer number (43283249400).

Almost surely, 2^346261673778 is an apocalyptic number.

346261673778 is an abundant number, since it is smaller than the sum of its proper divisors (346270316622).

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

346261673778 is a wasteful number, since it uses less digits than its factorization.

346261673778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720241.

The product of its digits is 42674688, while the sum is 60.

The spelling of 346261673778 in words is "three hundred forty-six billion, two hundred sixty-one million, six hundred seventy-three thousand, seven hundred seventy-eight".