680415441502 has 4 divisors (see below), whose sum is σ = 1020623162256. Its totient is φ = 340207720750.

The previous prime is 680415441491. The next prime is 680415441571. The reversal of 680415441502 is 205144514086.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170103860374 + ... + 170103860377.

It is an arithmetic number, because the mean of its divisors is an integer number (255155790564).

Almost surely, 2^680415441502 is an apocalyptic number.

680415441502 is a deficient number, since it is larger than the sum of its proper divisors (340207720754).

680415441502 is a wasteful number, since it uses less digits than its factorization.

680415441502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340207720753.

The product of its (nonzero) digits is 153600, while the sum is 40.

Adding to 680415441502 its reverse (205144514086), we get a palindrome (885559955588).

The spelling of 680415441502 in words is "six hundred eighty billion, four hundred fifteen million, four hundred forty-one thousand, five hundred two".