680801345 has 24 divisors (see below), whose sum is σ = 970579584. Its totient is φ = 456894816.

The previous prime is 680801339. The next prime is 680801353. The reversal of 680801345 is 543108086.

It is not a de Polignac number, because 680801345 - 2¹⁴ = 680784961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18047 + ... + 41076.

It is an arithmetic number, because the mean of its divisors is an integer number (40440816).

Almost surely, 2^680801345 is an apocalyptic number.

It is an amenable number.

680801345 is a deficient number, since it is larger than the sum of its proper divisors (289778239).

680801345 is a wasteful number, since it uses less digits than its factorization.

680801345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59189 (or 59182 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 680801345 is about 26092.1701857090. The cubic root of 680801345 is about 879.7112279943.

The spelling of 680801345 in words is "six hundred eighty million, eight hundred one thousand, three hundred forty-five".