679349029850 has 24 divisors (see below), whose sum is σ = 1269107073660. Its totient is φ = 270552971520.

The previous prime is 679349029841. The next prime is 679349029859. The reversal of 679349029850 is 58920943976.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (679349029841) and next prime (679349029859).

It can be written as a sum of positive squares in 6 ways, for example, as 510483099361 + 168865930489 = 714481^2 + 410933^2 .

It is not an unprimeable number, because it can be changed into a prime (679349029859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29654447 + ... + 29677346.

Almost surely, 2^679349029850 is an apocalyptic number.

679349029850 is a deficient number, since it is larger than the sum of its proper divisors (589758043810).

679349029850 is a wasteful number, since it uses less digits than its factorization.

679349029850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59332034 (or 59332029 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 679349029850 in words is "six hundred seventy-nine billion, three hundred forty-nine million, twenty-nine thousand, eight hundred fifty".