697713017009551 has 2 divisors, whose sum is σ = 697713017009552. Its totient is φ = 697713017009550.

The previous prime is 697713017009509. The next prime is 697713017009597. The reversal of 697713017009551 is 155900710317796.

697713017009551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-697713017009551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 697713017009551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697713017099551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348856508504775 + 348856508504776.

It is an arithmetic number, because the mean of its divisors is an integer number (348856508504776).

Almost surely, 2^{697713017009551} is an apocalyptic number.

697713017009551 is a deficient number, since it is larger than the sum of its proper divisors (1).

697713017009551 is an equidigital number, since it uses as much as digits as its factorization.

697713017009551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12502350, while the sum is 61.

The spelling of 697713017009551 in words is "six hundred ninety-seven trillion, seven hundred thirteen billion, seventeen million, nine thousand, five hundred fifty-one".