9145488556697 has 2 divisors, whose sum is σ = 9145488556698. Its totient is φ = 9145488556696.

The previous prime is 9145488556663. The next prime is 9145488556741. The reversal of 9145488556697 is 7966558845419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8572153374976 + 573335181721 = 2927824^2 + 757189^2 .

It is an emirp because it is prime and its reverse (7966558845419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9145488556697 - 2²⁸ = 9145220121241 is a prime.

It is not a weakly prime, because it can be changed into another prime (9145488556597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572744278348 + 4572744278349.

It is an arithmetic number, because the mean of its divisors is an integer number (4572744278349).

Almost surely, 2^{9145488556697} is an apocalyptic number.

It is an amenable number.

9145488556697 is a deficient number, since it is larger than the sum of its proper divisors (1).

9145488556697 is an equidigital number, since it uses as much as digits as its factorization.

9145488556697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736000, while the sum is 77.

The spelling of 9145488556697 in words is "nine trillion, one hundred forty-five billion, four hundred eighty-eight million, five hundred fifty-six thousand, six hundred ninety-seven".