680658626154 has 16 divisors (see below), whose sum is σ = 1466033964192. Its totient is φ = 209433423408.

The previous prime is 680658626147. The next prime is 680658626173. The reversal of 680658626154 is 451626856086.

It is a junction number, because it is equal to n+sod(n) for n = 680658626094 and 680658626103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363196244 + ... + 4363196399.

It is an arithmetic number, because the mean of its divisors is an integer number (91627122762).

Almost surely, 2^680658626154 is an apocalyptic number.

680658626154 is an abundant number, since it is smaller than the sum of its proper divisors (785375338038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680658626154 is a wasteful number, since it uses less digits than its factorization.

680658626154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726392661.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 680658626154 in words is "six hundred eighty billion, six hundred fifty-eight million, six hundred twenty-six thousand, one hundred fifty-four".