680817478 has 16 divisors (see below), whose sum is σ = 1118039760. Its totient is φ = 308358400.

The previous prime is 680817463. The next prime is 680817493. The reversal of 680817478 is 874718086.

It is an interprime number because it is at equal distance from previous prime (680817463) and next prime (680817493).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48883 + ... + 61246.

It is an arithmetic number, because the mean of its divisors is an integer number (69877485).

Almost surely, 2^680817478 is an apocalyptic number.

680817478 is a deficient number, since it is larger than the sum of its proper divisors (437222282).

680817478 is a wasteful number, since it uses less digits than its factorization.

680817478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110423.

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 680817478 is about 26092.4793379242. The cubic root of 680817478 is about 879.7181768002.

The spelling of 680817478 in words is "six hundred eighty million, eight hundred seventeen thousand, four hundred seventy-eight".