684662349146 has 8 divisors (see below), whose sum is σ = 1036081962324. Its totient is φ = 339301695040.

The previous prime is 684662349079. The next prime is 684662349179. The reversal of 684662349146 is 641943266486.

It can be written as a sum of positive squares in 2 ways, for example, as 684489820921 + 172528225 = 827339^2 + 13135^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514739485 + ... + 1514739936.

Almost surely, 2^684662349146 is an apocalyptic number.

684662349146 is a deficient number, since it is larger than the sum of its proper divisors (351419613178).

684662349146 is a wasteful number, since it uses less digits than its factorization.

684662349146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029479536.

The product of its digits is 35831808, while the sum is 59.

The spelling of 684662349146 in words is "six hundred eighty-four billion, six hundred sixty-two million, three hundred forty-nine thousand, one hundred forty-six".