680123294933 has 4 divisors (see below), whose sum is σ = 680165167500. Its totient is φ = 680081422368.

The previous prime is 680123294923. The next prime is 680123294951. The reversal of 680123294933 is 339492321086.

680123294933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469201710289 + 210921584644 = 684983^2 + 459262^2 .

It is a cyclic number.

It is not a de Polignac number, because 680123294933 - 2³⁶ = 611403818197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680123294923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20911910 + ... + 20944407.

It is an arithmetic number, because the mean of its divisors is an integer number (170041291875).

Almost surely, 2^680123294933 is an apocalyptic number.

It is an amenable number.

680123294933 is a deficient number, since it is larger than the sum of its proper divisors (41872567).

680123294933 is a wasteful number, since it uses less digits than its factorization.

680123294933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41872566.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 680123294933 in words is "six hundred eighty billion, one hundred twenty-three million, two hundred ninety-four thousand, nine hundred thirty-three".