680502905476 has 9 divisors (see below), whose sum is σ = 1190882971831. Its totient is φ = 340250627812.

The previous prime is 680502905473. The next prime is 680502905479. The reversal of 680502905476 is 674509205086.

The square root of 680502905476 is 824926.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (680502905473) and next prime (680502905479).

It is a super-2 number, since 2×680502905476² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680502905473) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1443621 + ... + 1856083.

Almost surely, 2^680502905476 is an apocalyptic number.

680502905476 is the 824926-th square number.

It is an amenable number.

680502905476 is a deficient number, since it is larger than the sum of its proper divisors (510380066355).

680502905476 is an frugal number, since it uses more digits than its factorization.

680502905476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824930 (or 412465 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 680502905476 in words is "six hundred eighty billion, five hundred two million, nine hundred five thousand, four hundred seventy-six".