680262175897 has 4 divisors (see below), whose sum is σ = 689843333376. Its totient is φ = 670681018420.

The previous prime is 680262175877. The next prime is 680262175907. The reversal of 680262175897 is 798571262086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680262175897 - 2¹¹ = 680262173849 is a prime.

It is a super-2 number, since 2×680262175897² (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 (680262175877) 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, 4790578633 + ... + 4790578774.

It is an arithmetic number, because the mean of its divisors is an integer number (172460833344).

Almost surely, 2^680262175897 is an apocalyptic number.

It is an amenable number.

680262175897 is a deficient number, since it is larger than the sum of its proper divisors (9581157479).

680262175897 is an equidigital number, since it uses as much as digits as its factorization.

680262175897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581157478.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 680262175897 in words is "six hundred eighty billion, two hundred sixty-two million, one hundred seventy-five thousand, eight hundred ninety-seven".