345677381686 has 40 divisors (see below), whose sum is σ = 641971293840. Its totient is φ = 136751333472.

The previous prime is 345677381663. The next prime is 345677381689. The reversal of 345677381686 is 686183776543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345677381689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32401 + ... + 832108.

It is an arithmetic number, because the mean of its divisors is an integer number (16049282346).

Almost surely, 2^345677381686 is an apocalyptic number.

345677381686 is a deficient number, since it is larger than the sum of its proper divisors (296293912154).

345677381686 is an frugal number, since it uses more digits than its factorization.

345677381686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864570 (or 864531 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 64.

The spelling of 345677381686 in words is "three hundred forty-five billion, six hundred seventy-seven million, three hundred eighty-one thousand, six hundred eighty-six".