688096741609 has 2 divisors, whose sum is σ = 688096741610. Its totient is φ = 688096741608.

The previous prime is 688096741523. The next prime is 688096741663. The reversal of 688096741609 is 906147690886.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688070250000 + 26491609 = 829500^2 + 5147^2 .

It is a cyclic number.

It is not a de Polignac number, because 688096741609 - 2¹⁹ = 688096217321 is a prime.

It is not a weakly prime, because it can be changed into another prime (688096711609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344048370804 + 344048370805.

It is an arithmetic number, because the mean of its divisors is an integer number (344048370805).

Almost surely, 2^688096741609 is an apocalyptic number.

It is an amenable number.

688096741609 is a deficient number, since it is larger than the sum of its proper divisors (1).

688096741609 is an equidigital number, since it uses as much as digits as its factorization.

688096741609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 688096741609 in words is "six hundred eighty-eight billion, ninety-six million, seven hundred forty-one thousand, six hundred nine".