1597669715623 has 2 divisors, whose sum is σ = 1597669715624. Its totient is φ = 1597669715622.

The previous prime is 1597669715597. The next prime is 1597669715671. The reversal of 1597669715623 is 3265179667951.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1597669715623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1597669715683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798834857811 + 798834857812.

It is an arithmetic number, because the mean of its divisors is an integer number (798834857812).

Almost surely, 2^{1597669715623} is an apocalyptic number.

1597669715623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1597669715623 is an equidigital number, since it uses as much as digits as its factorization.

1597669715623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128595600, while the sum is 67.

The spelling of 1597669715623 in words is "one trillion, five hundred ninety-seven billion, six hundred sixty-nine million, seven hundred fifteen thousand, six hundred twenty-three".