680123451 has 8 divisors (see below), whose sum is σ = 1036378624. Its totient is φ = 388641960.

The previous prime is 680123447. The next prime is 680123461. The reversal of 680123451 is 154321086.

680123451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680123451 - 2² = 680123447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680123461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16193395 + ... + 16193436.

It is an arithmetic number, because the mean of its divisors is an integer number (129547328).

Almost surely, 2^680123451 is an apocalyptic number.

680123451 is a deficient number, since it is larger than the sum of its proper divisors (356255173).

680123451 is a wasteful number, since it uses less digits than its factorization.

680123451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32386841.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 680123451 is about 26079.1765782588. The cubic root of 680123451 is about 879.4191462136.

The spelling of 680123451 in words is "six hundred eighty million, one hundred twenty-three thousand, four hundred fifty-one".