680953061287 has 2 divisors, whose sum is σ = 680953061288. Its totient is φ = 680953061286.

The previous prime is 680953061249. The next prime is 680953061303. The reversal of 680953061287 is 782160359086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680953061287 - 2³⁹ = 131197247399 is a prime.

It is a super-2 number, since 2×680953061287² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680953061227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340476530643 + 340476530644.

It is an arithmetic number, because the mean of its divisors is an integer number (340476530644).

Almost surely, 2^680953061287 is an apocalyptic number.

680953061287 is a deficient number, since it is larger than the sum of its proper divisors (1).

680953061287 is an equidigital number, since it uses as much as digits as its factorization.

680953061287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 680953061287 in words is "six hundred eighty billion, nine hundred fifty-three million, sixty-one thousand, two hundred eighty-seven".